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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 19599. Отображено 100.
07-10-2019 дата публикации

Горелка для наплавки металла

Номер: RU0000192910U1
Автор: Алексей Сергеевич Сухочев, Роман Юрьевич Киреев
Принадлежит: Общество с ограниченной ответственностью "Арк-инжиниринг"

Полезная модель относится к сварочному производству и может быть использована в технологии обработки металлов, в том числе для сварки, термоупрочнения, послойного формирования металлических изделий, а именно к аддитивным технологиям, восстановления поврежденных элементов и изношенных поверхностей из низкоуглиродистых, низко- и среднелегированных, нержавеющих сталей.Технический результат заключается в повышении эксплуатационных характеристик за счет обеспечения возможности ее использования для наплавки, послойного формирования металлических изделий, а именно к аддитивным технологиям.Горелка для наплавки металла содержит внешнее сопло, внутри которого размещены токопроводящий наконечник, фиксатор наконечника, керамический изолятор, фиксирующая гайка, канал для подачи сварочной проволоки, канал подачи газа из шлангпакета, в пространстве между внешним соплом и токопроводящим наконечником концентрично установлено внутреннее сопло, имеющее газовые отверстия на границе перехода его цилиндрической части в конусную и предназначенное для разделения защитного газового потока на два концентрических потока. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 192 910 U1 (51) МПК B23K 9/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B23K 9/16 (2019.02) (21)(22) Заявка: 2018141068, 22.11.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "Арк-инжиниринг" (RU) Дата регистрации: 07.10.2019 (45) Опубликовано: 07.10.2019 Бюл. № 28 1 9 2 9 1 0 R U (54) ГОРЕЛКА ДЛЯ НАПЛАВКИ МЕТАЛЛА (57) Реферат: Полезная модель относится к сварочному производству и может быть использована в технологии обработки металлов, в том числе для сварки, термоупрочнения, послойного формирования металлических изделий, а именно к аддитивным технологиям, восстановления поврежденных элементов и изношенных поверхностей из низкоуглиродистых, низко- и среднелегированных, нержавеющих сталей. ...

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Номер записи: 1
05-04-2012 дата публикации

Output control for auto-reconnect welding/cutting equipment

Номер: US20120080409A1
Автор: Steven McQuerry
Принадлежит: Lincoln Global Inc

Apparatus and methods for automatically recalibrating an output current range of a user output current control encoder of an auto-reconnect welding/cutting device. When an input power type connected to an auto-reconnect device is changed, the calibrated range of the user output current control encoder (e.g., output control knob) is automatically transformed in response to the auto-reconnect device sensing at least one characteristic of the input power type. As a result, when a user adjusts the encoder to its maximum full-scale setting, too much current will not be drawn by the auto-reconnect device which would cause a circuit protection component (e.g., a circuit breaker or a fuse) associated with the input power type to trip. Instead, the current that is drawn when the encoder is set to the maximum full-scale setting is no more than about a rated current of the circuit protection component.

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Номер записи: 2
12-04-2012 дата публикации

Method for welding shafts on a vertical rotational axis

Номер: US20120088591A1
Автор: Karl-Heinz Gunzelmann
Принадлежит: SIEMENS AG

A first tubular, inner radial annular seam is produced to weld together two hollow cylinders by narrow-gap tungsten inert gas arc welding. Narrow-gap metal gas-shielded arc welding is used to create another tubular, outer radial annular seam to further weld together both hollow cylinders. In this manner, the rotational axis of the rotor shaft remains vertically aligned throughout the entire production method of welding together the shaft parts. In this manner, the required production time can be advantageously reduced and the use of welding filler can be effectively decreased.

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Номер записи: 3
10-05-2012 дата публикации

Robot system control method

Номер: US20120116585A1
Автор: Kazumasa Yoshima
Принадлежит: Panasonic Corp

In a control method of a robot system of the present invention, one of two industrial robots is used as a master robot, and the other is used as a slave robot. Data indicating the relation of the relative position and relative attitude between the master robot and the slave robot in welding conditioning work is stored as one set of information. During teaching work, in a state where the master robot and the slave robot exist at any positions, the slave robot is moved with respect to the position of the master robot so as to reproduce the relation of the relative position and relative attitude indicated by the one set of stored information, or the master robot is moved with respect to the position of the slave robot.

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Номер записи: 4
14-06-2012 дата публикации

Manual welding apparatus having an automatic wire retract method

Номер: US20120145689A1
Автор: David Kempert, Edward Hillen
Принадлежит: Lincoln Global Inc

A method providing a manual welding apparatus configured to supply a welding wire to a welding gun. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire does not extend from the opening of the welding gun.

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Номер записи: 5
21-06-2012 дата публикации

Spool gun adapter

Номер: US20120152923A1
Автор: Brian Scott Bashore, Darrell Lee Sickels
Принадлежит: Hobart Brothers LLC

The present disclosure provides a welding system having a welder, a welding gun, and a welding gun adapter, the welding gun being a spool gun with an attached motor. The welding gun adapter receives welding power from the welder, and converts it to output power suitable for driving the motor of the welding gun. The welding gun adapter also uses received welding power from the welder for control power. The present techniques allow for the use of welding guns requiring motor power to be used with any ordinary welder.

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Номер записи: 6
09-08-2012 дата публикации

Welding device and carbon dioxide gas shielded arc welding method

Номер: US20120199560A1
Автор: Akihiro Ide, Futoshi Nishisaka, Tetsuo Era
Принадлежит: Daihen Corp

A welding device includes a power supply circuit for applying a voltage across a torch and a base metal, and a power supply control device. The power supply control device controls the power supply circuit such that a high level current is output during a first arc period Ta 1 that is the initial period of an arc period, and an arc current corresponding to a regulated welding voltage is output during a second arc period Ta 2 that is the latter period of the arc period. The power supply control device controls the power supply circuit such that a high level current is generated having a waveform increasing and decreasing at a constant frequency and constant amplitude superimposed on the high level current. By superimposing the waveform, the elevation of a droplet caused by an repelled force by the arc can be prevented, allowing a droplet to be formed in stabilization.

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Номер записи: 7
06-09-2012 дата публикации

Non-consumable electrode type arc welding apparatus

Номер: US20120223058A1
Автор: Naomichi Katsumata, Seigo Nishikawa, Takeshi Morimoto
Принадлежит: Sansha Electric Manufacturing Co Ltd, Tokin Corp, Yaskawa Electric Corp

A non-consumable electrode type arc welding apparatus includes a torch having an electrode portion and a nozzle, a gas supply that supplies, to the torch, a shielding gas flowing through a gap formed between the electrode portion and the nozzle, a first power source that applies a voltage between the electrode portion and the nozzle to generate a pilot arc, a second power source that applies a voltage between the electrode portion and a work to generate a main arc, and a controller that controls the first power source and the second power source. The electrode portion has an electrode and an electrode holding portion holding a base portion of the electrode, the electrode holding portion has a protrusion protruding toward the nozzle from the side facing the nozzle, and the protrusion and the nozzle are caused contact and separate from each other.

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Номер записи: 8
06-09-2012 дата публикации

Welding method and welding device

Номер: US20120223063A1
Автор: Akira Nakagawa, Hideki Ihara, Hiroki Yuzawa, Kazunori Matsumoto, Kimiya Sato, Yoshiaki Tanaka
Принадлежит: Panasonic Corp

In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.

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Номер записи: 9
31-01-2013 дата публикации

Apparatus and method for cohesive joining

Номер: US20130028659A1
Автор: Alois Leitner, Roland Rechberger
Принадлежит: VOESTALPINE STAHL GMBH

The invention relates to an apparatus and to a process for cohesively joining two plates ( 1 and 2 ) having differing melting points, one of which plates, the end plate ( 1 ), includes a light metal material, in particular aluminum material, and the other of which plates, the connecting plate ( 2 ), includes an iron and/or titanium material, wherein a coating ( 9 ) preferably on the basis of zinc or aluminum is provided at least partially on at least one of the abutting faces ( 3′, 3 ″) of the abutting edge ( 3 ) of the connecting plate ( 2 ) which extend inclined with respect to one another, in which process both plates ( 1 and 2 ) are joined together by braze welding so as to abut against one another along their common joint using an additional material ( 5 ) on the basis of light metal, in particular on the basis of aluminum. In order to provide advantageous process conditions, the invention proposes that a recess ( 10 ) be made, before joining, in the abutting edge ( 4 ) of the end plate ( 1 ) for receiving at least part of the coated abutting edge ( 3 ) of the connecting plate ( 2 ), wherein, during joining, braze welding is carried out at least partially over a flank ( 11 or 12 ) of the recess ( 10 ) overlapping the coating ( 9 ) of the connecting plate part.

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Номер записи: 10
21-02-2013 дата публикации

Air-carbon arc system and apparatus for detecting and/or reducing irregularities in a work piece surface and method of using the same

Номер: US20130043220A1
Автор: Alex Li, Glenn K. Redding, Jacques WANG, Jeffery Steven Henderson, Patrick Allen Laymon
Принадлежит: Victor Equipment Co

An air-carbon arc system for reducing irregularities in a work piece surface including a control box, a torch head operationally connected to the control box and configured to cooperate with the work piece to generate an arc, and a pendant operationally connected to the control box and having a means for reducing irregularities in the work piece surface.

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Номер записи: 11
28-02-2013 дата публикации

Tig welding machine

Номер: US20130048620A1
Автор: Sung Gu Oh, Sung Ho Ra
Принадлежит: Individual

The present invention relates to a TIG welding machine. The TIG welding machine according to the present invention includes: a torch unit ( 400 ) disposed with an electrode ( 632 ), a wire ( 634 ) and a weaving unit ( 410 ); a welding posture control unit ( 100 ) for controlling a welding posture by rotating the torch unit ( 400 ) vertically and horizontally so as to precede the torch unit ( 400 ) with reference to the advancing direction of the torch unit ( 400 ); a weld line tracing unit ( 200 ) mounted to the welding posture control unit ( 100 ) and detecting the placed state of a base metal for welding so as to trace a weld line; and a torch transfer unit ( 300 ) for moving the torch unit ( 400 ) based on the information of the weld line which has been traced in the weld line tracing unit ( 200 ).

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Номер записи: 12
28-03-2013 дата публикации

Welding system and method utilizing cloud computing and data storage

Номер: US20130075380A1
Автор: Bruce Patrick Albrech, Edward J. Panelli, Quinn William Schartner
Принадлежит: ILLINOIS TOOL WORKS INC

A welding system or an enterprise using welding systems can communicate with cloud-based resources for the provision of services and products to facilitate the welding operations. The communications may be via wired or wireless media, and may be direct, or through other components, such as enterprise networks, peripheral devices, and so forth. The cloud-based resources may provide for storage of data, particularly welding data, processing of data, welding protocols, specifications and processes, financial transactions for the purchase, licensing or use of welding-related products and services, welding training, and so forth.

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Номер записи: 13
04-04-2013 дата публикации

CONSUMABLE ELECTRODE ARC WELDING METHOD AND CONSUMABLE ELECTRODE ARC WELDING DEVICE

Номер: US20130082040A1
Автор: FUJIWARA Junji, KAWAMOTO Atsuhiro, KOWA Masaru, MISHIMA Toshiyuki, MUKAI Yasushi
Принадлежит: Panasonic Corporation

If a short circuit does not occur during deceleration of a wire feed speed in forward feed of a welding wire before the wire feed speed reaches a predetermined wire feed speed, a cyclic change is stopped and the wire feed speed is constantly controlled at the first feed speed. If a short circuit occurs during forward feed at the first feed speed, deceleration from the first feed speed starts, and the cyclic change is resumed for welding. This achieves uniform weld bead without increasing spatters even if any external disturbance such as change of distance between a tip and base material occurs. 1. A consumable electrode arc welding device in which welding takes place by repeating an arc state and a short circuit state between a welding wire and a workpiece to be welded , the device comprising:a switching element for controlling a welding output;a welding voltage detector for detecting a welding voltage;a welding condition setting unit for setting a set current;a short circuit/arc detector for detecting one of the short circuit state and the arc state based on an output of the welding voltage detector;a memory for storing the set current, an average feed speed of wire feed speed, a frequency of the wire feed speed, and an amplitude of the wire feed speed in a linked manner;a wire feed speed determinator for determining the average feed speed of wire feed speed, the frequency of wire feed speed, and the amplitude of wire feed speed from the memory based on the set current set by the welding condition setting unit; anda wire feed speed controller for receiving an output of the short circuit/arc detector and an output of the wire feed speed determinator, and controlling the wire feed speed in cyclic change of forward feed and backward feed,whereinthe wire feed speed controller stops the cyclic change and starts a constant control of the wire feed speed at a first feed speed if no short circuit occurs during deceleration of the wire feed speed in the forward feed of the ...

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Номер записи: 14
04-04-2013 дата публикации

CONSUMABLE ELECTRODE ARC WELDING METHOD AND CONSUMABLE ELECTRODE ARC WELDING DEVICE

Номер: US20130082041A1
Автор: FUJIWARA Junji, KAWAMOTO Atsuhiro, KOWA Masaru, MISHIMA Toshiyuki, MUKAI Yasushi
Принадлежит: Panasonic Corporation

If a short circuit does not occur during deceleration of a wire feed speed in forward feed of a welding wire before the wire feed speed reaches a predetermined wire feed speed, a cyclic change is stopped and the wire feed speed is constantly controlled at the first feed speed. If a short circuit occurs during forward feed at the first feed speed, deceleration from the first feed speed starts, and the cyclic change is resumed for welding. This achieves uniform weld bead without increasing spatters even if any external disturbance such as change of distance between a tip and base material occurs. 1. A consumable electrode arc welding device in which welding takes place by repeating an arc state and a short circuit state between a welding wire and a workpiece to be welded , the device comprising:a switching element for controlling a welding output;a welding voltage detector for detecting a welding voltage;a welding condition setting unit for setting a set current;a short circuit/arc detector for detecting one of the short circuit state and the arc state based on an output of the welding voltage detector;a memory for storing the set current, an average feed speed of wire feed speed, frequency of the wire feed speed, and an amplitude of the wire feed speed in a linked manner;a wire feed speed determinator for determining the average feed speed of wire feed speed, the frequency of wire feed speed, and the amplitude of wire feed speed from the memory based on the set current set by the welding condition setting unit; anda wire feed speed controller for receiving an output of the short circuit/arc detector and an output of the wire feed speed determinator, and controlling the wire feed speed in cyclic change of forward feed and backward feed,whereinthe wire feed speed controller stops the cyclic change and starts a constant control of the wire feed speed at a second feed speed if a short circuit is not opened during acceleration of the wire feed speed in the backward feed ...

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Номер записи: 15
11-04-2013 дата публикации

WELDING SYSTEM

Номер: US20130087542A1
Автор: MASAI Toshiaki, YOSHIMA KAZUMASA
Принадлежит: Panasonic Corporation

The movement of a single electrode by a welding robot system (a) is followed by the movement of a single electrode by another welding robot system (b). By constructing the single electrode of one welding robot system (a) and the single electrode of the another welding robot system (b) to perform welding simultaneously in the same direction on the same welding line, the degrees of freedom of the robots are not restricted, the available welding range becomes wide, and constraints on the posture of the robots are eliminated, compared with a case where a tandem welding-dedicated torch is used. 2. The welding system of claim 1 ,wherein the two welding robot systems are used. This application is a divisional of U.S. patent application Ser. No. 13/003,673, filed Jan. 11, 2011, which is a U.S. National Phase Application of PCT International Application PCT/JP2010/000927, which is incorporated herein by reference.The present invention relates to a welding method and a welding system which uses a plurality of welding robot systems, and performs simultaneous welding on one welding line using welding electrodes mounted on the welding robot systems.Conventionally, in a welding method at production sites, welding robots have been introduced to advance automation and labor saving. Moreover, in recent years, so-called high-deposition welding with a large amount of a consumable welding electrode (that is, a welding wire) which melts and transfers to a base material tends to be performed in order to achieve high efficiency in the welding method. “Tandem welding” of aligning two electrodes on a welding line and performing one-pool two-arc welding is often adopted, as a welding method for performing high-deposition welding while maintaining high welding quality.A two-electrode integrated torch, or two single-electrode torches which are fixedly arranged in proximity to each other are generically referred to as a “tandem welding-dedicated torch” for convenience of the following ...

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Номер записи: 16
25-04-2013 дата публикации

REMOTE WELDING SYSTEM AND METHOD

Номер: US20130098886A1
Автор: Feldhausen Joseph Edward, Ihde Jeffery R., Lahti Thomas D., Rappl James Francis
Принадлежит: ILLINOIS TOOL WORKS INC.

Embodiments of a pendant associated with a multi-process welding power supply that allows a user to switch processes and reverse an output polarity while located remotely from a power supply unit are provided. Certain embodiments include a pendant with a wire spool and wire feeder drive circuitry that is configured to activate spooling during MIG welding. Control circuitry that may include processing circuitry and memory is provided. The control system may disable redundant controls on the power supply unit user interface when the power supply unit is connected to the pendant via a supply cable. Additionally, the control system may set the process, set the polarity, enable or disable a wire feed, and enable or disable gas flow according to inputs received via a user interface on either the power supply unit or the pendant. 120.-. (canceled)21. A remotely controlled welding system comprising:a power supply unit comprising a first user interface comprising one or more control devices that enable a user to enable output of power from the power supply unit at either a first polarity or a second polarity opposite from the first polarity, or to set a welding process; a second user interface comprising one or more additional control devices that enable the user to enable the output of power from the power supply unit at the first polarity or the second polarity, or to set the welding process;', 'at least one reversible output that may be enabled at the first polarity or reversed to the second polarity; and', 'control circuitry configured to enable the reversible output at the first polarity or at the second polarity depending on the welding process set by the user via the first user interface or the second user interface; and, 'a pendant located remotely with respect to the power supply unit and comprisinga supply cable that communicatively couples the power supply unit to the pendant.22. The remotely controlled welding system of claim 21 , wherein the power supply unit ...

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Номер записи: 17
02-05-2013 дата публикации

Method For Arc-Welding Aluminum-Coated Metal Parts Using An Inert Gas Containing Nitrogen

Номер: US20130105445A1
Автор: Bertin Pascal, Dubet Olivier, GADREY Sébastien, Richard Frederic
Принадлежит: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude

The invention relates to a method for electric arc welding, without a laser beam, one or more metal parts, in particular made of steel, including an aluminum surface coating, in particular a coating consisting of aluminum and silicon, using a protective gas, characterized in that the protective gas consists of a mixture of argon and/or helium, and additionally of nitrogen, in particular less than 30 volume % of nitrogen, typically 2 to 10 volume % of nitrogen. 112-. (canceled)13. A process for the electric-arc welding of at least one metallic part comprising a surface coating based on aluminum , using a shielding gas , wherein the melting of the metal of said metallic part is carried out solely by the electric arc , with no laser beam contributing to the melting , wherein the shielding gas consists of a mixture of argon and/or helium , and nitrogen , said shielding gas containing at least 0.025% and at most 30% by volume of nitrogen.1413. The process of clam , wherein the shielding gas contains at least 0.025% and at most 20% by volume of nitrogen.1513. The process of clam , wherein the shielding gas contains at least 3% by volume of nitrogen or less than 10% by volume of nitrogen.1613. The process of clam , wherein the shielding gas contains at least 4% by volume of nitrogen and at most 8% by volume of nitrogen.1713. The process of clam , wherein the shielding gas contains from 5% to 7% by volume of nitrogen.1813. The process of clam , wherein the metallic part or parts comprise a surface coating based on aluminum having a thickness between 5 and 100 μm.1913. The process of clam , wherein the metal part or parts are made of steel with a surface coating based on aluminum and silicon (Si/Al).2013. The process of clam , wherein the metal part or parts comprise a surface coating based on aluminum and silicon containing a proportion of aluminum between 5 and 100 times greater than that of silicon.2113. The process of clam , wherein the metal part or parts comprise a ...

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Номер записи: 18
02-05-2013 дата публикации

Hybrid Arc/Laser-Welding Method For Aluminized Steel Part Using A Gas Including Nitrogen And/Or Oxygen

Номер: US20130105446A1
Автор: Briand Francis, Dubet Olivier
Принадлежит:

The invention relates to a hybrid laser/arc-welding method using an electric arc and a laser beam that are combined together within a single welding bath, to which molten metal is supplied by melting a filler wire, wherein the welding bath is provided on at least one steel part including an aluminum surface coating, and a protective gas is used, characterized in that the protective gas consists of at least one main compound selected from argon and helium, and of at least one additional compound selected from nitrogen and oxygen. 112-. (canceled)13. A laser/arc hybrid welding process using an electric arc and a laser beam that are combined with one another , a weld pool being produced on at least one steel part comprising an aluminum-based surface coating , wherein the weld metal is provided by melting a consumable wire , and wherein use is furthermore made of a shielding gas , wherein the shielding gas consists of at least one main compound chosen from argon and helium , and of at least one additional compound chosen from nitrogen and oxygen.14. The process of claim 13 , wherein the shielding gas contains from 1% to 20% by volume of said at least one additional compound.15. The process of claim 13 , wherein the shielding gas contains from 2% to 10% by volume of said at least one additional compound.16. The process of claim 13 , wherein the shielding gas contains only nitrogen as additional compound.17. The process of claim 13 , wherein the shielding gas contains from 4% to 7% by volume of nitrogen as additional compound.18. The process of claim 13 , wherein the shielding gas is a He/Ar/N2 or Ar/N2 mixture.19. The process of claim 13 , wherein the steel part or parts comprise an aluminum-based surface coating having a thickness between 5 and 100 μm.20. The process of claim 13 , wherein the metal part or parts are made of steel with a surface coating based on aluminum and on silicon.21. The process of claim 13 , wherein the consumable wire is melted by the electric ...

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Номер записи: 19
09-05-2013 дата публикации

RAPID CHANGE MIG NOZZLE CONFIGURATIONS AND RELATED METHODS

Номер: US20130112661A1
Автор: DAMBRA Robert A.
Принадлежит:

A rapid change nozzle apparatus includes a nozzle member and a seat or base member wherein the nozzle member may be quickly and easily manually selectively connected with and/or detached from the seat or base member in order for maintenance personnel or operators of an associated welding system to conveniently replace the nozzle as necessary or desired without significant down-time impact relative to the underlying welding processes. The nozzle member is supported relative to the base or seat member by a set of pin members extending from the base member and received in longitudinal and circumferential grooved in the nozzle member body, and by the biasing influence of a spring member disposed between the nozzle member and the base member whereby the spring urges the nozzle member into relative separation from the base member and into contact with the locating pin members. 1. A rapid change nozzle apparatus for use with an associated welding system , the rapid change nozzle apparatus comprising:a base member comprising a base member body having on opposite first and second ends and defining a first hollow passageway extending therethrough, the first end of the base member body comprising a connection portion being configured for selective connecting of the base member with the associated welding system and the second end of the base member body comprising a coupling portion forming a substantially planar front face surface, wherein the first hollow passageway opens in the planar front face surface and is configured for communicating an associated fluid from the associated welding system between the first and second ends of the base member body;a set of locating pin members disposed in a fixed position relative to the base member and extending radially relative to a longitudinal axis extending in a direction perpendicular to the planar front face surface of the base member body;a tip member comprising a tip member body having opposite first and second ends and defining ...

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Номер записи: 20
09-05-2013 дата публикации

MIG/MAG Welding of Carbon Steel with Rotating Arc and Ar/He/O2 Gas Mixture

Номер: US20130112662A1
Автор: Biskup Laurent, Boudet Gilles, Planckaert Jean-Pierre, Saez Michel
Принадлежит: L'AIR LIQUIDE, SOCIETE ANOYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

The invention relates to a ternary gaseous mixture formed from argon, helium and oxygen, characterized in that it is formed from between 19.5 and 20.5% of helium, between 2.7 and 3.3% of Oi, and argon for the remainder (volume %), and to the use thereof as gaseous protection in a method of electric arc welding of at least one steel part to carbon, using a fusible filler wire. Preferably, the welded parts overlap or cover each other and the rotary arc welding takes place where the parts overlap. 111-. (canceled)12. A process for the electric-arc MIG/MAG welding of at least two carbon steel parts with use of a consumable filler wire , a rotating arc and gas shielding formed of a ternary gas mixture consisting of 19.5 to 20.5% of helium , of 2.7 to 3.3% of O2 and of argon for the remainder (% by volume) , wherein the consumable filler wire is melted by the rotating arc so as to obtain metal transfer by rotating liquid vein and the at least two carbon steel parts overlapping or covering one another , the rotating arc welding taking place at said overlap or covering up.13. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 19.8 to 20.2% of helium.14. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 2.8 to 3.2% of O2.15. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 2.9 to 3.1% of O2.16. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture consisting of 20% of helium claim 12 , 3% of O2 and of argon for the remainder.17. The process of claim 12 , wherein the welded parts are in a joggled type configuration.18. The process of claim 12 , wherein the welded parts are constituent components of a pressure vessel of the hot water tank claim 12 , extinguisher claim 12 , compressor claim 12 , refrigeration device or gas cylinder type.19. The process of claim 12 , wherein the welded ...

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Номер записи: 21
09-05-2013 дата публикации

Method For Arc-Welding Aluminum-Coated Metal Parts Using Oxidizing Gas

Номер: US20130112663A1
Автор: Frederic Richard, Olivier Dubet, Pascal Bertin, Sebastien Gadrey
Принадлежит: Individual

The invention relates to an electric arc welding method for welding at least one metal part including an aluminum based surface coating, using a shielding gas. According to the invention, the metal of the aforementioned metal part is melted by the electric arc alone without the use of any laser beam. The invention is characterized in that the shielding gas comprises a mixture of argon and/or helium, nitrogen, and an oxidizing compound selected from oxygen and carbon dioxide.

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Номер записи: 22
09-05-2013 дата публикации

SHORT ARC WELDING SYSTEM

Номер: US20130112674A1
Автор: Mnich Andrzej
Принадлежит: ESAB AB

A system for controlling a weld-current in an arc welding apparatus for short arc welding comprising a current regulator included in a voltage feedback loop from a power supply to a welding electrode and a ramp generator arranged to provide current ramps during a short circuit phase at said welding electrode. 1. A system for controlling a weld-current in a direct current arc welding apparatus for short arc welding comprising a current regulator included in a voltage feedback loop from a power supply to a welding electrode and a ramp generator arranged to provide current ramps during a short circuit phase at said welding electrode , wherein said voltage feedback loop includes an open circuit detector which is arranged to detect that an open circuit state is present and to suppress a feedback error (E) when an open circuit state is detected by said open circuit detector.2. A system for controlling a weld-current according to claim 1 , wherein said open circuit detector is connected to a switch which is arranged to connect or disconnect an input of said current regulator with an output of said subtraction node in dependence of whether an open circuit state is detected or not.3. A system for controlling a weld-current according to claim 1 , wherein said current regulator and ramp generator are connected in parallel and provides a reference current (Iref) for said power supply to the welding electrode.4. A system for controlling a weld-current according to claim 3 , wherein said reference current (Iref) is the sum of an output current (Ireg) from said current regulator and a current ramp (Iramp) provided from said ramp generator.5. A system for controlling a weld-current according to claim 3 , wherein said voltage feedback loop includes a subtraction node at which a feedback error (E) is generated from the difference between a measured arc voltage (Uarc) and a reference voltage (Uref).6. A system for controlling a weld-current according to claim 1 , wherein said current ...

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Номер записи: 23
09-05-2013 дата публикации

Welding monitoring system and method

Номер: US20130112678A1
Автор: Chang Ho Lee, Eui Koog Ahn, Gi Nam Wang, Hee Won Jo, Jae Geun Park, Lock-Jo Koo, Sang Chul Park, Seung Taek Hong, Tae Hyuck Yoon, Yong Woo Kang
Принадлежит: UDMTEK Co Ltd

Provided are a system and a method for monitoring welding operations. The system includes a welding machine, a current sensor sensing an operation time of the welding machine and a welding current, a welding information database storing information of the operation time of the welding machine and the welding current for each welding operator and storing information of a consumed charge amount of the welding machine, which is preset for each welding operation process, a data analyzer checking a charge amount consumed for the operation time by using the sensed operation time of the welding machine and the welding current and determining whether the welding operator achieves a task goal of a corresponding process by comparing the checked consumed charge amount with the preset consumed charge amount for a process performed by the welding machine, and a display unit outputting a result of the determining, performed by the data analyzer, whether the welding operator achieves a task goal of a corresponding process.

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Номер записи: 24
16-05-2013 дата публикации

Method to improve gmaw and gtaw welding performance

Номер: US20130119034A1
Автор: George B. Koprivnak, Robert L. Dodge, Steven R. Peters
Принадлежит: Lincoln Global Inc

A method of controlling a power source includes providing a power supply module. The power supply module includes a first circuit that has at least one first switch. The first circuit is configured to provide a welding current to an electrode of a welding system. The power supply module also has a second circuit that includes a load that is operatively connected to at least one second switch. The second circuit is configured to provide the welding current to the electrode through the load. The method also includes controlling the at least one first switch such that the welding current flows through the at least one first switch and to the electrode during a ramp up portion of a welding waveform and such that no current flows through the at least one first switch during a ramp down portion of the welding waveform. The method further includes controlling the at least one second switch such that the welding current flows through the load and to the electrode during the ramp down portion of the welding waveform. The ramp down portion takes the welding current to a predetermined value.

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Номер записи: 25
23-05-2013 дата публикации

HOLLOW CONTACT TIP-DIFFUSER FOR GMAW MANUAL/ROBOTIC ARC WELDING MIG GUNS

Номер: US20130126504A1
Автор: Hassan Khalid, Talkington John
Принадлежит: Victor Equipment Company

A consumable component for use in an arc welding apparatus is provided that functions as both a contact tip and a diffuser. The consumable component includes a body having an internal cavity extending from a proximal end portion to a distal end portion. At least one slot extends through an outer wall of the body, between the proximal end portion and the distal end portion and into the internal cavity. An exit orifice extends through the distal end portion of the body, defining a radiused inlet in one form of the present disclosure. 1. A consumable component for use in an arc welding apparatus comprising:a body defining an internal cavity extending from a proximal end portion to a distal end portion;at least one slot extending from an exterior portion of the body to the internal cavity; andan exit orifice extending through the distal end portion of the body.2. The consumable component according to claim 1 , wherein the at least one slot extends normally in relation to an outer wall of the body.3. The consumable component according to claim 1 , wherein the at least one slot extends at an angle in relation to an outer wall of the body.4. The consumable component according to claim 1 , wherein the at least one slot defines at least one angled passage wall in relation to an angle normal to an outer wall of the body.5. The consumable component according to claim 1 , wherein the at least one slot defines at least one rounded passage wall.6. The consumable component according to claim 1 , wherein the at least one slot comprises a substantially polygonal opening.7. The consumable component according to claim 1 , wherein the at least one slot extends at an angle in relation to the longitudinal axis of the body.8. The consumable component according to claim 1 , wherein the at least one slot extends at an angle perpendicular to the longitudinal axis of the body.9. The consumable component according to claim 1 , wherein the at least one slot extends parallel to the longitudinal ...

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Номер записи: 26
23-05-2013 дата публикации

Centering device for conductor tube for gmaw manual/robotic arc welding mig guns

Номер: US20130126505A1
Автор: Glenn Redding, Jim Barker, Khalid Hassan, Mike STEPHENS, Ross FLEISHMANN
Принадлежит: Victor Equipment Co

An arc welding apparatus is disclosed in one form including a conductor tube defining an internal passageway and a distal end portion. The internal passageway has an internal profile proximate the distal end portion. The apparatus further includes an alignment device comprising an exterior profile and an internal passage. The exterior profile is configured for mechanical attachment to the internal profile of the conductor tube. The apparatus also includes a conduit liner disposed in the internal passageway of the conductor tube and the internal passage of the alignment device.

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Номер записи: 27
23-05-2013 дата публикации

Gas diffuser for gmaw manual/robotic arc welding mig guns

Номер: US20130126506A1
Автор: Khalid Hassan
Принадлежит: Victor Equipment Co

A conductor tube for use in an arc welding apparatus is disclosed that diffuses gas from an aperture in the conductor tube. The conductor tube has an internal passageway and a distal end portion. In one form of the present disclosure, proximate to the distal end portion there is at least one aperture disposed wherein the gas flowing through the internal passageway is at least partially dispersed through the at least one aperture.

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Номер записи: 28
23-05-2013 дата публикации

Wire retaining ring for endless bulk mig wire boxes

Номер: US20130126662A1
Автор: Herbert Matthews, III
Принадлежит: Lincoln Global Inc

The subject embodiments are directed to a system to allow an uninterrupted flow of a coil welding wire from one container to another container, the coil of welding wire including a coil top and a coil bottom. Each container includes at least one vertically extending side wall, a closed bottom, a top opening for removing the welding wire and a wire coil receiving cavity within the outer packaging for receiving the wire coil, the feeding end and the trailing end being positionable near the top opening. A wire retaining ring is disposed on the coil top in the container and another said container, the wire retaining ring includes a slot that extends radially from a center of the coil to allow the trailing end of the coil to be drawn at a location away from the center of the coil.

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Номер записи: 29
06-06-2013 дата публикации

ARC WELDING DEVICE AND PROCESS USING A MIG/MAG TORCH COMBINED WITH A TIG TORCH

Номер: US20130140280A1
Автор: Biskup Laurent, Planckaert Jean-Pierre
Принадлежит:

The invention relates to a device and a process for the arc welding of metal workpieces employing a MIG/MAG welding torch combined with a TIG welding torch so as to operate simultaneously and to obtain welded joints free of protruding defects. 113-. (canceled)14. A device for arc welding metal at least two workpieces , the device comprising a first welding torch , comprising a MIG or MAG welding torch , in combination with a second welding torch , comprising a TIG welding torch , in a way allowing the first welding torch and the second welding torch to operate simultaneously , wherein said first welding torch comprises a wire guide allowing a consumable wire to be guided in a given first direction and the second welding torch comprises a nonconsumable electrode pointed in a given second direction , said first and second directions being substantially coplanar and forming an angle (α) larger than 10° and smaller than 40° , and the nonconsumable electrode comprises a tip (D) located a distance (d) of between 20 and 44 mm from said first direction.15. The device of claim 14 , wherein the tip (D) is located a distance (d) of between 20 mm and 26 mm from the first direction.16. The device of claim 15 , wherein the tip (D) is located a distance (d) of between 36 mm and 44 mm from the first direction.17. The device of claim 14 , wherein the first and second directions form an angle (α) of between 15° and 25°.18. The device of claim 17 , wherein the first and second directions form an angle (α) of between 18° and 23°19. The device of claim 17 , wherein the first and second directions form an angle (α) of 20°.20. The device of claim 14 , wherein the electrode comprises a conical taper to said tip (D) claim 14 , said conical taper having an opening (β) of between 20° and 40°.21. A process for arc welding at least two metal workpieces comprising the steps of:a) gradually producing a weld bead on the at least two metal workpieces by means of a first welding torch, comprising a ...

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Номер записи: 30
13-06-2013 дата публикации

WELDING APPARATUS WITH AUTOMATED WELDING WIRE RETRACTION

Номер: US20130146575A1
Автор: Daniel Joe, Hillen Edward, Kempert David
Принадлежит: LINCOLN GLOBAL, INC.

A method providing a welding apparatus configured to supply a welding wire to a welding gun and a welding system implementing the same is described. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program, the program dynamically adjusting the amount of welding wire retraction based at least upon one of the following: welding arc current, welding wire size, welding wire speed and burnback time. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire preferably does not extend (or minimally extends—or may be at least partially recessed within the tip) from the opening of the welding gun nozzle tip. 1. An automatic wire retract method comprising:providing a manual welding apparatus having at least a welding power source, a wire feeder configured to supply a welding wire, and a welding gun having a trigger and an opening from which the welding wire extends;providing an automatic wire retract program having a retract delay time;configuring the manual welding apparatus to include the automatic wire retract program;monitoring when the trigger is enabled to extend the welding wire from the wire feeder to the opening, and extending the welding wire out of the opening of the welding gun;determining a first amount of time when the trigger is disabled;determining when the first amount of time is at least equal to the retract delay time, wherein the trigger is disabled during the first amount of time; andat least partially retracting the welding wire into the opening of the welding gun for a retract distance or a retract time, said step of at least partially retracting dynamically based upon at least one of the following parameters: welding arc current, welding wire size, welding wire feed rate ...

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Номер записи: 31
27-06-2013 дата публикации

METHOD OF AUTOMATICALLY SETTING A WELDING PARAMETER FOR MIG/MAG WELDING AND A CONTROLLER FOR PERFORMING THE METHOD

Номер: US20130161302A1
Автор: Aberg Per
Принадлежит: ESAB AB

A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:—initiating (S) a parameter setting welding operation;—measuring (S) a welding voltage and retrieving (S) a parameter representing a wire feed speed during said parameter setting welding operation; and—identifying (S) a second function mapping said welding current to said welding voltage from said measured welding voltage and said retrieved parameter. 1. A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:initiating a parameter setting welding operation; comprisingmeasuring a welding voltage and retrieving a parameter representing a wire feed speed during said parameter setting welding operation; andidentifying a second function mapping said parameter representing a wire feed speed to said welding voltage from said measured welding voltage and said retrieved parameter.2. A method according to claim 1 , further comprising:determining a welding parameter depending on wire welding material from said second function.3. A method according to claim 1 , further comprisingdetermining a wire welding material from said second function.4. A method according to claim 3 , wherein a desired welding current is determined from a set actual thickness of a work piece in dependence on said wire welding material determined from said second function.5. A method according to claim 1 , further comprising determining a globular area transition current from said determined wire welding material.6. A method according to claim 5 , further comprising adjusting a short-circuiting percentage from a first larger value to a second smaller value when said desired welding current is increased to a value equal or greater than said globular area transition current claim 5 , and by adjusting said short-circuiting percentage from a second smaller value to a first larger value when said desired welding current is decreased to a value equal or smaller ...

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Номер записи: 32
11-07-2013 дата публикации

WELDER WITH POSITIONAL HEAT CONTROL AND METHOD OF USING SAME

Номер: US20130175247A1
Автор: Fulmer Bruce E., Peters Steven R.
Принадлежит: LINCOLN GLOBAL, INC.

An electric arc welder for producing a weave pattern across a workpiece with a succession of individual weld short runs or bead, each of which has a center portion extending between two transversely spaced edges. The welder comprising a power source, a wire feeder to direct a welding wire through a movable torch to the workpiece and a controller for creating a welding current between the wire and the workpiece. A mechanical device is used to move the torch along the bead and the controller has a program to perform a first weld process while the torch is moving along the center portion and a second weld process when the torch is adjacent the edges, where the first weld process has less heat input than the second weld process. 1. An electric arc welder for producing a weave pattern across a workpiece with a succession of individual weld runs each of which has a center portion extending between two transversely spaced edges , the welder comprising:a power source;a wire feeder; anda controller for causing the power source to perform a first weld process in the center portion and a second weld process adjacent at least a first one of the edges, wherein the second weld process is a different process than the first weld process and wherein the first weld process is selected from the group consisting of short arc transfer GMAW, surface tension transfer, low power mode, low WFS, negative polarity shorting transfer, low duty cycle VP-GMAW and CMT transfer.2. An electric arc welder as defined in wherein the controller performs the second weld process adjacent both of the edges.3. An electric arc welder as defined in wherein the controller performs the second weld process adjacent a second one of the edges.4. An electric arc welder as defined in wherein the first weld process is a lower heat process than the second weld process.5. An electric arc welder as defined in wherein the second weld process is selected from the class consisting of spray transfer GMAW claim 4 , pulsed ...

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Номер записи: 33
01-08-2013 дата публикации

Welding System and Method

Номер: US20130193114A1
Автор: COOPER Edward L., Zlotin Boris
Принадлежит:

A welding system having a welding gun with a contact tip having an bore extending therethrough and a consumable weld wire. The cross-sectional shape of the bore of the contact tip being is essentially identical to the cross-sectional shape of the weld wire. The bore having an essentially elliptical cross-sectional shape and the weld wire having an essentially elliptical cross-sectional shape. 1. In a combination of a contact tip and a weld wire for gas metal arc welding , the contact tip having a body with opposed ends and a bore extending between the ends wherein the weld wire is configured to extend through the bore; the improvement which comprises: the bore of the contact tip haying a cross-sectional shape essentially identical to a cross-sectional shape of the weld wire wherein the cross-sectional shape of the bore is not a circle.2. The combination of wherein the cross-sectional shape of the bore is essentially a Rello triangle.3. The combination of wherein the cross-sectional shape of the bore is essentially a modified square where sides of the square are arcs.4. The combination of wherein the cross-sectional shape of the bore is essentially a modified pentagon where sides of the pentagon are arcs.5. The combination of wherein the cross-sectional shape of the bore is essentially a square having rounded corners.6. The combination of wherein the cross-sectional shape of the bore is essentially a rectangle having rounded corners.7. The combination of wherein the cross-sectional shape of the bore is essentially a triangle having rounded corners.8. The combination of wherein the cross-sectional shape of the bore is essentially a rhomboid having rounded corners.9. The combination of wherein the cross-sectional shape of the bore is essentially a trapezoid having rounded corners.10. The combination of wherein the cross-sectional shape of the bore is essentially a pentagon.11. The combination of wherein the cross-sectional shape of the bore is essentially a hexagon.12. ...

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Номер записи: 34
01-08-2013 дата публикации

WELDING APPARATUS AND A METHOD FOR WELDING

Номер: US20130193115A1
Автор: Berg Michael
Принадлежит: ESAB AB

The invention relates to a twin wire welding apparatus () including a first contact tube () for guiding a first consumable electrode () toward a weld puddle () and transferring welding current to the first consumable electrode (), a second contact tube () for guiding a second consumable electrode () toward said weld puddle () and transferring welding current to the second consumable electrode (), and a single power source () connected to said first and second contact tubes () for providing the same potential to said two consumable electrodes (), and to a method for operating such an apparatus. 120-. (canceled)21. A twin wire welding apparatus comprising:a first contact tube for guiding a first consumable electrode toward a weld puddle and for transferring welding current to the first consumable electrode;a second contact tube for guiding a second consumable electrode toward said weld puddle and for transferring welding current to the second consumable electrode;a single power source connected to said first and second contact tubes for providing a same potential to said two consumable electrodes; anda feeding arrangement for feeding a cold wire into said weld puddle, said arrangement configured to feed said cold wire essentially orthogonally into said weld puddle.22. A welding apparatus according to claim 21 , wherein said feeding arrangement is arranged to feed said cold wire into said weld puddle at an angle of less than 5° with respect to a surface normal.23. A welding apparatus according to claim 21 , wherein said first and second contact tribes are formed in separate contact tips.24. A welding apparatus according to claim 21 , wherein the first and second contact tubes are connected to said single power source via first and second contact devices claim 21 , wherein said first and second contact devices are separate for the first and second contact tubes.25. A welding apparatus according to claim 21 , wherein said welding apparatus further includes a contact tube ...

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Номер записи: 35
01-08-2013 дата публикации

WELDING TORCH AND ADAPTER KIT

Номер: US20130193117A1
Автор: Oono Hiroki, Wada Katsunori
Принадлежит: TAIYO NIPPON SANSO CORPORATION

According to the present invention, an adapter kit is provided in which a welding torch having a single nozzle structure is switched to a welding torch having a double nozzle structure. In an adapter kit (A) which is installed in a switchable manner in a welding torch (A) having a single nozzle structure, the present invention includes an attachment (A) which is mounted to the torch body () in a state where the torch nozzle (inner nozzle) (A) is inserted into the attachment after the gasket is removed and in which a flow channel that supplies a second shielding gas is provided, and an outer nozzle (A) that is mounted to the attachment (A) surrounding the periphery of the torch nozzle (A) and discharges a second shielding gas. 1. A welding torch comprising:a non-consumable electrode that generates an arc toward a material to be welded;a collet that supports the non-consumable electrode which is being inserted into the inside of the collet;a collet body that internally holds the collet in a state where the non-consumable electrode protrudes from the tip side of the collet body;a torch body that mounts the collet body and comprises a power supply portion that supplies electric power to the non-consumable electrode via the collet body and the collet, and a flow channel that supplies a first shielding gas;an inner nozzle that is mounted to the collet body surrounding the periphery of the non-consumable electrode and discharges the first shielding gas;an attachment that is mounted to the torch body in a state where the inner nozzle is inserted into the inside of the attachment, and comprises a flow channel that supplies a second shielding gas; andan outer nozzle that is mounted to the attachment surrounding the periphery of the inner nozzle and discharges the second shielding gas, wherein the attachment is mounted in a state of being interposed between the torch body and the inner nozzle.2. The welding torch according to claim 1 , wherein the inner nozzle is mounted to ...

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Номер записи: 36
29-08-2013 дата публикации

AUXILIARY POWER SUPPLY FOR A WELDING MACHINE

Номер: US20130220986A1
Автор: LUO LIFENG LARRY
Принадлежит: LINCOLN GLOBAL, INC.

A electric welding machine having an auxiliary power output, and a method for controlling the auxiliary power output on a welding machine is provided. In one embodiment, the system includes a main transformer having a first secondary winding in circuit communication with a welder power output and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output. The auxiliary power supply includes an input for monitoring the welder power output to determine if the welder power output is on; circuitry for determining whether a surge or spike in demand is present at the auxiliary power output; and circuitry for limiting the available power to the auxiliary power output if certain conditions are satisfied. One method includes monitoring the demand on an auxiliary power output, monitoring a welding power output, determining whether there is a spike in the demand on the auxiliary power output that is above a first limit, and reducing the available power to the auxiliary power output if the spike is above the first limit and the welding power output is energized. 120.-. (canceled)21. An electric welding machine comprising:a main transformer that provides isolation from a power input to the welding machine, the main transformer having a first secondary winding in circuit communication with a welder power output; and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output operable separate from the welder power output to power a separate electrically powered device;the auxiliary power supply including an input for monitoring the welder power output to determine if the welder power output is on; circuitry for monitoring the output of the auxiliary power output; and circuitry for reducing the available power to the auxiliary power output if there is a surge in power demand on the auxiliary power output that exceeds a set limit and the welder power output is on.22. The ...

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Номер записи: 37
12-09-2013 дата публикации

TANDEM GAS-SHIELDED ARC WELDING METHOD

Номер: US20130233833A1
Автор: Suzuki Reiichi, YAMAZAKI Kei, YUAN Yimin
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

In a tandem gas-shielded arc welding method, carbon dioxide is used as a shielding gas for a leading electrode formed by a solid wire, an argon-carbon dioxide gas mixture containing at least 60% by volume of argon gas is used as a shielding gas for a trailing electrode formed by a solid wire or a flux-cored wire, both the leading electrode and the trailing electrode have a reverse polarity, the leading electrode satisfies the relationships “5.00≦(I·V·10)/(W·πr)≦10.00” and “(I·10)/V≧4.50”, and the trailing electrode satisfies the relationships “4.00≦(I·V·10)/(W·πr)≦7.00” and “(I 10)/V≧8.00”. 2. The tandem gas-shielded arc welding method according to claim 1 , wherein a wire diameter a (mm) of the leading electrode satisfies a≦2.0 claim 1 , and a wire diameter b (mm) of the trailing electrode satisfies b≦(a−0.2). 1. Field of the InventionThe present invention relates to a two-electrode welding method in gas-shielded arc welding.2. Description of the Related ArtTechniques for a gas-shielded arc welding method have been proposed in International Publication No. WO2008/016084, Japanese Unexamined Patent Application Publication No. 2004-188428, and Japanese Unexamined Patent Application Publication No. 2010-125496. For example, International Publication No. WO2008/016084 makes an assumption, in tandem gas metal arc (GMA) welding, that there is a different shielding gas composition suitable for each of a leading electrode and a trailing electrode. This is because the leading electrode has a function of increasing the depth of weld penetration into a base material, whereas the trailing electrode has a function of stopping the flow of metal with arc pressure to shape a molten pool, the metal being melted by an arc from the leading electrode and flowing backward from the molten pool. Under the assumption described above, International Publication No. WO2008/016084 proposes a technique in which, by supplying shielding gases of different compositions suitable for the leading ...

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Номер записи: 38
19-09-2013 дата публикации

FLUX-CORED WIRE AND GAS-SHIELDED ARC WELDING METHOD USING THE SAME

Номер: US20130240488A1
Автор: Izutani Shun, MIYATA Minoru, Suzuki Reiichi
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

There is provided a flux-cored wire containing flux within a stainless steel or mild steel outer cover for use in stainless steel welding and gas-shielded arc welding using a shielding gas. The flux-cored wire contains, based on the total mass of the flux-cored wire, predetermined amounts of C, Si, Mn, P, S, Cr, Ti, and O. The remainder are Fe and incidental impurities. The shielding gas is pure Ar gas. 1. A flux-cored wire containing flux within a stainless steel or mild steel outer cover for use in stainless steel welding and gas-shielded arc welding using a shielding gas ,the flux-cored wire comprising: based on the total mass of the flux-cored wire,C: 0.10% by mass or less,Si: 1.50% by mass or less,Mn: 2.00% by mass or less,P: 0.050% by mass or less,S: 0.050% by mass or less,Cr: 15.0% to 25.0% by mass,Ti: 0.16% to 1.00% by mass, andO: 0.300% by mass or less,the remainder being Fe and incidental impurities,wherein the shielding gas is pure Ar gas.2. The flux-cored wire according to claim 1 , further comprising: based on the total mass of the flux-cored wire claim 1 , at least one ofAl: 1.00% by mass or less,N: 0.05% by mass or less,Nb: 0.10% to 1.00% by mass, andMo: 3.00% by mass or less.3. The flux-cored wire according to claim 1 , wherein the Cr and Ti contents areCr: 15.0% to 19.0% by mass, andTi: 0.16% to 0.50% by mass,the flux-cored wire further comprising:based on the total mass of the flux-cored wire, at least one ofAl: 1.00% by mass or less,N: 0.05% by mass or less,Nb: 0.10% to 1.00% by mass, andMo: 3.00% by mass or less.4. The flux-cored wire according to any one of to claim 1 , wherein the flux filling factor is in the range of 5% to 30% by mass based on the total mass of the flux-cored wire.5. The flux-cored wire according to or claim 1 , wherein the Nb content is Nb: 0.30% to 1.00% by mass.6. A gas-shielded arc welding method claim 1 , comprising: feeding the flux-cored wire according to into a shielding gas of pure Ar; and passing a pulsed electric ...

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Номер записи: 39
03-10-2013 дата публикации

WELDING POWER SUPPLY WITH DIGITAL CONTROL OF DUTY CYCLE

Номер: US20130256290A1
Автор: Vogel Bernard J.
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source of power, and to convert the chopped power to a welding output is provided. The provided welding power supply includes a pulse width modulated (PWM) digital controller including gate drive circuitry that generates a PWM output signal that controls the switching of the one or more power semiconductor switches. The PWM output signal includes a duty cycle term corrected for one or more sources of error in the welding system. 1. A digital pulse width modulated (PWM) controller for a switched mode welding power supply configured to:determine an output voltage term of the switched mode welding power supply;calculate a variable bus voltage term of the switched mode welding power supply;calculate a proportional error term that corrects for a difference between a commanded current level and an actual output current level of the welding power supply; andcompute a duty cycle term by combining the determined output voltage term, the calculated variable bus voltage term, and the proportional error term.2. The digital controller of claim 1 , further configured to calculate a decoupling term that corrects for a gate drive delay in a circuit associated with one or more power semiconductor switches and to compute the duty cycle term by combining the determined output voltage term claim 1 , the calculated variable bus voltage term claim 1 , the proportional error term claim 1 , and the decoupling term.3. The digital controller of claim 1 , further configured to calculate an integral term that corrects for a steady state error between the commanded current level and the actual output current level and to compute the duty cycle term by combining the determined output voltage term claim 1 , the calculated variable bus voltage term claim 1 , the proportional error term claim 1 , and the integral term.4. ...

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Номер записи: 40
10-10-2013 дата публикации

WELDING TORCH WITH A TEMPERATURE MEASUREMENT DEVICE

Номер: US20130264315A1
Автор: Hung Derek Yu-Fung, Kadlec Mark Steven, Luck John Alan
Принадлежит: ILLINOIS TOOL WORKS INC.

Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece. 1. A welding system , comprising:a welding torch configured to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece; anda temperature sensing system integral with the welding torch and configured to sense a temperature of the workpiece.2. The welding system of claim 1 , wherein the welding torch is a tungsten inert gas welding torch configured to establish the welding arc between a tungsten electrode and the workpiece.3. The welding system of claim 2 , wherein the temperature sensing system comprises a digital temperature probe integral with a cap portion of the tungsten inert gas welding torch.4. The welding system of claim 3 , wherein the temperature sensing system further comprises a digital display configured to display the sensed temperature of the workpiece.5. The welding system of claim 1 , wherein the temperature sensing system is reversibly coupled to the welding torch in a tool-less engagement.6. The welding system of claim 1 , wherein the temperature sensing system is coupled to the welding torch in an engagement that is configured to be irreversible without the use of tools.7. The welding system of claim 1 , wherein the temperature sensing system comprises a non-contact sensor configured to sense the temperature of the workpiece without establishment of physical contact between the non-contact sensor and the workpiece.8. The welding system of claim 1 , wherein the temperature sensing system comprises a contact sensor configured to sense the temperature of the workpiece via physical contact between the ...

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Номер записи: 41
10-10-2013 дата публикации

Weld Cell System With Communication

Номер: US20130264319A1
Автор: Albrecht Bruce P., Bunker Thomas A., Byron Clay A., Feldhausen Joseph E., Holverson Todd E., Ihde Jeffery R., Novak Michael H., Rappl James F., Schneider Joseph C., Temby Timothy N.
Принадлежит: Illinois Tool Works, Inc.

A method and apparatus for providing welding-type power is disclosed and includes a means for communicating. 1. A welding-type system that can identify a weld cable , comprising a welding power supply having a controller , a power circuit connected to receive at least one signal from the controller , at least one weld cable connection connected to receive power from the power circuit , and a weld cable locator module having a cable locator output connected to at least one of the controller , the power circuit , and the weld cable connection.2. The welding-type system of claim 1 , wherein the cable locator output is connected to claim 1 , and able to provide an identifier signal to claim 1 , the weld cable connection.3. The welding-type system of claim 1 , wherein the weld cable locator module comprises:a memory, capable of storing cable identifier information;a receiver, capable of receiving a cable identifier signal; anda comparator, connected to compare the stored cable identifier information and the received cable identifier signal;wherein the cable locator output is responsive to the comparator.4. The welding-type system of further comprising claim 3 , a pendant with a cable sensor and a transmitter responsive to the cable sensor.5. The welding-type system of wherein the cable sensor includes an RFID reader.6. The welding-type system of wherein the cable sensor includes a bar code reader.7. The welding-type system of further comprising a weld8. The welding-type system of wherein the transmitter is a wireless transmitter and the receiver is a wireless receiver.9. The welding-type system of further comprising a wire feeder connected to a distal end of the weld cable claim 4 , a power supply binding module in the welding power supply and a wire feeder binding module in the wire feeder claim 4 , wherein the power supply binding module and the wire feeder binding module are responsive to the weld cable locator module.10. A method of locating a distal end of a weld ...

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Номер записи: 42
10-10-2013 дата публикации

Welding systems having non-contact temperature measurement systems

Номер: US20130264322A1
Автор: Brian J. Bornemann, Kyle A. Pfeifer, Richard M. Achtner
Принадлежит: ILLINOIS TOOL WORKS INC

Welding systems including welding torch assemblies are provided. The welding torch assembly may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. Shielding gas may be supplied to the welding torch for establishment of a gas shielding area around a weld pool. The welding torch assembly may also include a temperature sensing system having a non-contact temperature sensor coupled to the welding torch and adapted to sense a temperature of the workpiece at a location outside of the molten weld pool.

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Номер записи: 43
10-10-2013 дата публикации

WELDING GUN

Номер: US20130264324A1
Автор: Kachline Jeff
Принадлежит:

A welding gun, including a contact tip assembly, a diffuser cap, a tip holder, and a shielding gas diffuser, where the shielding gas diffuser includes a casing and an axial tube extending within the casing, and where the casing and the tip holder are connected via a connection system that includes threads with reduced peaks 1. A shielding gas diffuser , comprising:a casing; andan axial tube extending within the casing.2. The shielding gas diffuser recited in claim 1 , further comprising:a groove formed in a radially inner surface of the casing, and connected to a proximal end of the axial tube.3. The shielding gas diffuser recited in claim 1 , wherein: the casing further comprises a distal end and a radial hole formed in a radially outer surface of the casing near the distal end claim 1 , and wherein the radial hole is connected to the axial tube.4. The shielding gas diffuser recited in claim 3 , wherein a distal end of the axial tube opens to the distal end of the casing.5. The shielding gas diffuser recited in claim 1 , further comprising:a connection system for a tip holder on a radially inner surface of the casing.6. The shielding gas diffuser recited in claim 5 , wherein the connection system comprises threads with reduced peaks.7. The shielding gas diffuser recited in claim 5 , wherein the connection system is axially coextensive with the axial tubes.8. A shielding gas diffuser claim 5 , comprising:a casing; andaxial tubes extending within the casing.9. The shielding gas diffuser recited in claim 8 , further comprising:a groove formed in a radially inner surface of the casing and connected to proximal ends of the axial tubes.10. The shielding gas diffuser recited in claim 8 , wherein the casing further comprises a distal end and radial holes formed in a radially outer surface of the casing near the distal end claim 8 , andwherein the radial holes are individually connected to the axial tubes.11. The shielding gas diffuser recited in claim 10 , wherein distal ...

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Номер записи: 44
17-10-2013 дата публикации

Adjustable welding head for multiple electrode cladding

Номер: US20130270243A1
Автор: Huijun Wang, Matthew J. Behmlander
Принадлежит: Caterpillar Inc

A welding head is provided. The welding head includes a bracket and a plurality of blocks coupled to the bracket. Each of the plurality of blocks has a contact tip. The contact tips are adapted to receive an electrode. Further, at least one of the plurality of blocks is capable of variable positioning relative to the bracket.

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Номер записи: 45
24-10-2013 дата публикации

CONSTRICTING NOZZLE AND TIG WELDING TORCH USING THIS NOZZLE

Номер: US20130277337A1
Автор: Murata Akihisa, Nakayama Shigeru, TANAKA Manabu
Принадлежит:

The constricting nozzle of the present invention includes (i) a cylindrical nozzle body disposed around the forward end of the tungsten electrode rod concentrically with the tungsten electrode rod and defines an annular high-speed gas passage between the nozzle body and the outer peripheral surface of the forward end of the tungsten electrode rod, (ii) a plurality of positioning projections that are protrudently formed on the inner peripheral surface of the nozzle body with predetermined intervals in the circumferential direction and that are arranged along the longitudinal direction of the nozzle body to hold the tungsten electrode rod in the center position of the nozzle body, and (iii) a plurality of gas-flow regulating grooves formed between the positioning projections and that extend in parallel in the longitudinal direction of the nozzle body and regulate the shielding gas (G) flowing through the high-speed gas passage. 1. A constricting nozzle attached to a tungsten inert gas (TIG) welding torch , wherein a shielding gas that has flowed through an inside of a torch body of the TIG welding torch is laminarized by a gas lens disposed at a forward end of the torch body , wherein the laminarized shielding gas is discharged from a cylindrical shielding nozzle disposed at the forward end of the torch body toward a parent material to be welded , wherein an arc “a” is generated between the parent material and a tungsten electrode rod disposed in a center position of the shielding nozzle in an atmosphere of the shielding gas , and wherein the parent material is melted by heat of the arc “a” , and wherein the constricting nozzle comprises:(a) a cylindrical nozzle body disposed around a forward end of the tungsten electrode rod and concentrically with the tungsten electrode rod, and the cylindrical nozzle body defines an annular high-speed gas passage between the cylindrical nozzle body and an outer peripheral surface of the forward end of the tungsten electrode rod;(b) ...

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Номер записи: 46
07-11-2013 дата публикации

High Toughness Weld Metals With Superior Ductile Tearing Resistance

Номер: US20130292362A1
Автор: Ayer Raghavan, Fairchild Douglas P., Ford Steven J., Jin Hyun-Woo, Macia Mario L., Nissley Nathan E., Ozekcin Adnan
Принадлежит:

Weld metals and methods for welding ferritic steels are provided. The weld metals have high strength and high ductile tearing resistance and are suitable for use in strain based pipelines. The weld metal contains retained austenite and has a cellular microstructure with cell walls containing lath martensite and cell interiors containing degenerate upper bainite. The weld metals are comprised of between 0.02 and 0.12 wt % carbon, between 7.50 and 14.50 wt % nickel, not greater than about 1.00 wt % manganese, not greater than about 0.30 wt % silicon, not greater than about 150 ppm oxygen, not greater than about 100 ppm sulfur, not greater than about 75 ppm phosphorus, and the balance essentially iron. Other elements may be added to enhance the properties of the weld metal. The weld metals are applied using a power source with current waveform control which produces a smooth, controlled welding arc and weld pool in the absence of COor oxygen in the shielding gas. 2. The weld metal of wherein the weld metal further comprises between 0.5 and 10 vol. % retained austenite.3. The weld metal of wherein the weld metal has a tensile strength greater than 110 ksi and R-curve toughness higher than a curve represented by a delta value greater than 1.0.4. The weld metal of wherein 50 or more percent of the volume of the cell walls comprises lath martensite and 20 or more percent of the volume of the cell interiors comprises degenerate upper bainite.5. The weld metal of further comprising at least one of the following:not greater than about 0.30 wt % copper,not greater than about 0.04 wt % vanadium,not greater than about 0.30 wt % chromium,not greater than about 0.40 wt % molybdenum,not greater than about 0.04 wt % niobium,not greater than about 0.02 wt % titanium,not greater than about 0.02 wt % zirconium,not greater than about 20 ppm boron.6. The weld metal of wherein said weld metal is applied using a shielding gas comprising helium and argon.7. The weld metal of wherein said ...

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Номер записи: 47
07-11-2013 дата публикации

MODULAR WELDING SYSTEM

Номер: US20130292366A1
Автор: Enyedy Edward A., KINDIG Michael A., LEACH Jason, Thayer Robert J.
Принадлежит: LINCOLN GLOBAL, INC.

The invention described herein generally pertains to modular welding system which can switch between right-handed and left-handed wire feeders by use of the modular design and without having a duplicative dual feed system. This aspect is important with robotic welding as well as boom-mounted welding operations. 1. A modular welding system which comprises: at least one gas inlet connector;', 'at least one welding control cable connector;, 'at least one controller module, each of said at least one controller modules comprising'}at least one user interface module operatively connected to said at least one controller module;at least one separable wire drive module positionable from a first position to a second position, each of said separable wire drive modules comprising a feed module, the wire drive module connected to and in operative communication with said at least one controller module such that repositioning said wire drive module from said first position to said second position maintains said at least one gas inlet connector and said at least one welding control cable connector on the same plane; andat least one wire feeding means for supplying welding wire to said wire drive module, and whereinsaid wire drive module is configurable to feed wire in either a first position or a second position.2. The welding system of whereinsaid wire feeding means is selected from the group consisting of a reel stand for supporting a reel of wire and providing said wire to said wire feeder and a welding wire container providing said wire to said wire feeder.3. The welding system of whereinsaid at least one separable wire drive module is positionable from said first position to said second position by rotation of said wire drive module about a central longitudinal axis of said wire drive module which is parallel to a wire feed axis.4. The welding system of whereinsaid at least one separable wire drive module is positionable from said first position to said second position by ...

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Номер записи: 48
14-11-2013 дата публикации

SYSTEM AND METHOD FOR SUBMERGED ARC WELDING

Номер: US20130299461A1
Автор: Amata Mario Anthony, Barhorst Steven Edward, Bundy Joseph C., Fisher Kenneth Allen
Принадлежит:

This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW. 1. A welding system , comprising:a gas supply system configured to provide a gas flow;a wire supply system configured to provide welding wire;a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW); anda welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during the SAW.2. The welding system of claim 1 , wherein the gas flow and the flux both at least partially provide a local atmosphere near the arc.3. The welding system of claim 1 , wherein the welding torch assembly is configured to receive the flux and to mix the flux with the gas flow near the welding arc.4. The welding system of claim 1 , wherein the gas flow comprises argon claim 1 , helium claim 1 , carbon dioxide claim 1 , oxygen claim 1 , nitrogen claim 1 , hydrogen claim 1 , or a combination thereof5. The welding system of claim 1 , wherein the gas flow comprises a fluorine-containing gas.6. The welding system of claim 1 , wherein the flux supply system is coupled to the gas supply system and configured to provide the flux that is premixed with the gas flow to the welding torch assembly.7. The welding system of claim 1 , comprising a welding power supply configured to provide a DC electrode positive (DCEP) output claim 1 , DC electrode negative (DCEN) output claim 1 , or a variable balance AC ...

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Номер записи: 49
14-11-2013 дата публикации

SYSTEMS AND METHODS FOR USING FLUORINE-CONTAINING GAS FOR SUBMERGED ARC WELDING

Номер: US20130299462A1
Автор: Amata Mario Anthony, Barhorst Steven Edward, Bundy Joseph C., Fisher Kenneth Allen
Принадлежит:

This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a fluorine-containing gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the fluorine-containing gas flow and the welding wire and to deliver the fluorine-containing gas flow and the welding wire near the welding arc during the SAW. 1. A welding system , comprising:a gas supply system configured to provide a fluorine-containing gas flow;a wire supply system configured to provide welding wire;a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW); anda welding torch assembly configured to receive the fluorine-containing gas flow and the welding wire and to deliver the fluorine-containing gas flow and the welding wire near a welding arc during submerged arc welding (SAW).2. The welding system of claim 1 , wherein the fluorine-containing gas flow and the flux both at least partially provide a local atmosphere near the arc.3. The welding system of claim 1 , wherein the welding torch assembly is configured to mix the flux and the fluorine-containing gas flow near the welding arc.4. The welding system of claim 1 , wherein the fluorine-containing gas flow comprises argon claim 1 , helium claim 1 , carbon dioxide claim 1 , oxygen claim 1 , nitrogen claim 1 , hydrogen or a combination thereof.5. The welding system of claim 1 , wherein the fluorine-containing gas flow is nitrogen-based fluorine-containing gas flow claim 1 , silicon-based fluorine-containing gas flow claim 1 , tungsten-based fluorine-containing gas flow claim 1 , or a combination thereof.6. The welding system of claim 5 , wherein the fluorine-containing gas flow ...

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Номер записи: 50
14-11-2013 дата публикации

HYBRID WELDING METHOD AND WELDING TORCH FOR HYBRID WELDING

Номер: US20130299463A1
Автор: Kanemaru Shuhei, SASAKI Tomoaki, Sato Toyoyuki
Принадлежит: TAIYO NIPPON SANSO CORPORATION

An object of the present invention is to provide a hybrid welding method which can improve the stability of the arc, the welding speed, and welding efficiency, and the present invention provides a hybrid welding method in which a TIG arc is generated on the front side in the welding direction, and a MIG arc is generated on the back side in the welding direction in order to weld a welding base material, wherein electric current for the TIG welding is larger than electric current for the MIG welding; and an absolute value of the interval between an intersection of a center axis of a TIG electrode and a surface of the welding base material and an intersection of a center axis of a MIG electrode and the surface of the welding base material is 4 mm or less. 1. A hybrid welding method in which a TIG arc is generated on the front side in the welding direction , and a MIG arc is generated on the back side in the welding direction in order to weld a welding base material , wherein electric current for the TIG welding is larger than electric current for the MIG welding; and an absolute value of the interval between an intersection of a center axis of a TIG electrode and a surface of the welding base material and an intersection of a center axis of a MIG electrode and the surface of the welding base material is 4 mm or less.2. The hybrid welding method according to claim 1 , wherein a gas containing 25% or more of helium claim 1 , and argon gas as residue is used.3. The hybrid welding method according to claim 1 , wherein a gas containing 3% to 9% of hydrogen and argon gas as residue is used.4. The hybrid welding method according to claim 1 , wherein a gas containing 3% to 9% of hydrogen claim 1 , 25% or more of helium claim 1 , and argon gas as residue is used.5. The hybrid welding method according to claim 1 , wherein a gas containing 3% to 9% of hydrogen and helium gas as residue is used.6. The hybrid welding method according to claim 1 , wherein an absolute total(|a|+|β|) ...

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Номер записи: 51
14-11-2013 дата публикации

Arc welding control method and arc welding device

Номер: US20130299476A1
Автор: Atsuhiro Kawamoto, Junji Fujiwara, Masaru Kowa
Принадлежит: Panasonic Corp

Disclosed is a consumable electrode arc welding in which short-circuit welding is performed by alternating short-circuits and arcs while a welding wire is fed automatically. In this method, a short-circuit state and an arc state are alternately generated by feeding the welding wire in periodically alternating forward and backward directions at a predetermined frequency and a predetermined velocity amplitude with reference to a basic wire feed speed based on a set current. The speed of periodic feeding of the welding wire is controlled in such a manner that the waveform to feed the welding wire is different between the forward and backward directions.

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Номер записи: 52
14-11-2013 дата публикации

REMOTELY CONTROLLED WELDING MACHINE

Номер: US20130299477A1
Автор: Albrecht Bruce Patrick, Hogan MIchael W., Reynolds Jon O., Young Eric
Принадлежит:

The present invention is directed to a remotely controlled welding machine. A remote control uses the welding circuit to transfer information to a welding power source. The information to be communicated to the power source includes welding power source output command information (amperage/voltage control), welding circuit on/off information (power source output contactor control), and power source mode control (constant voltage/constant current). A transmitter transmits the desired welding operational parameters to a receiver disposed in the power source. The transmitter is constructed to use only a small amount of power which, preferably, is supplied by one or two low voltage replaceable and/or rechargeable batteries. Additionally, an open circuit voltage is not created between the power source and an electrode holder when an arc is not present. 120.-. (canceled)21. A welding system comprising:a power source having a controller to regulate welding operation;an electrode holder configured to hold a consumable wire in relative proximity to a workpiece such that a welding arc is created between the consumable wire and the workpiece;a wire feeder connecting the power source to the electrode holder and constructed to deliver welding-type power from the power source to the electrode holder, wherein an open circuit voltage is not created between the power source and the electrode holder when a welding arc is not present between the consumable wire and the workpiece; anda transmitter positioned in proximity to the wire feeder and configured to transmit a signal indicative of a desired welding operation.22. The welding system of comprising a receiver remote from the transmitter and configured to receive the signal and instruct the controller to regulate the power source according to the desired welding operation.23. The welding system of wherein the transmitter is configured to transmit the signal through a weld cable connected between the power source and the wire feeder. ...

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Номер записи: 53
21-11-2013 дата публикации

NI-BASE ALLOY WELD METAL, STRIP ELECTRODE, AND WELDING METHOD

Номер: US20130306602A1
Автор: Kawamoto Hiraoki, Sawada Yushi, Watanabe Hirohisa
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

A weld metal contains Cr: 28.0% to 31.5% by mass, Fe: 7.0% to 11.0% by mass, Nb and Ta: 1.5% to 2.5% by mass in total, C: 0.015% to 0.040% by mass, Mn: 0.5% to 4.0% by mass, N: 0.005% to 0.080% by mass, Si: 0.70% by mass or less (and more than 0%), Al: 0.50% by mass or less, Ti: 0.50% by mass or less, Mo: 0.50% by mass or less, Cu: 0.50% by mass or less, B: 0.0010% by mass or less, Zr: 0.0010% by mass or less, Co: 0.10% by mass or less, P: 0.015% by mass or less, and S: 0.015% by mass or less, the remainder being Ni and incidental impurities. 1. A Ni-base alloy weld metal , comprising:Cr: 28.0% to 31.5% by mass,Fe: 7.0% to 11.0% by mass,Nb and Ta: 1.5% to 2.5% by mass in total,C: 0.015% to 0.040% by mass,Mn: 0.5% to 4.0% by mass,N: 0.005% to 0.080% by mass,Si: 0.70% by mass or less (and more than 0%),Al: 0.50% by mass or less,Ti: 0.50% by mass or less,Mo: 0.50% by mass or less,Cu: 0.50% by mass or less,B: 0.0010% by mass or less,Zr: 0.0010% by mass or less,Co: 0.10% by mass or less,P: 0.015% by mass or less, andS: 0.015% by mass or less,the remainder being Ni and incidental impurities.2. The Ni-base alloy weld metal according to claim 1 , formed by electroslag welding or submerged arc welding using a strip electrode.3. A strip electrode claim 1 , comprising:Cr: 28.5% to 32.0% by mass,Fe: 7.0% to 11.0% by mass,Nb and Ta: 1.5% to 2.5% by mass in total,C: 0.015% to 0.040% by mass,Mn: 0.5% to 4.0% by mass,N: 0.005% to 0.080% by mass,Si: 0.40% by mass or less (and more than 0%)Al: 0.50% by mass or less,Ti: 0.50% by mass or less,Mo: 0.50% by mass or less,Cu: 0.50% by mass or less,B: 0.0010% by mass or less,Zr: 0.0010% by mass or less,Co: 0.10% by mass or less,P: 0.015% by mass or less, andS: 0.015% by mass or less,the remainder being Ni and incidental impurities.4. The strip electrode according to claim 3 , for use in electroslag welding or submerged arc welding.5. A welding method claim 3 , comprising:performing electroslag welding or submerged arc welding using a strip ...

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Номер записи: 54
21-11-2013 дата публикации

ENGINE DRIVEN WELDER-GENERATOR WITH CHOPPER CIRCUIT

Номер: US20130306611A1
Автор: DuVal Randall Joseph, Fosbinder Daniel C.
Принадлежит: ILLINOIS TOOL WORKS INC.

An engine driven welder-generator including a chopper circuit and being adapted to produce an AC weld output, a DC weld output, and an auxiliary output is provided. The engine driven welder-generator is capable of selectively running at a low engine speed or a high engine speed based on operator inputs and may produce both AC and DC power outputs while utilizing the chopper circuit. The engine driven welder-generator is also adapted to provide an auxiliary output during an AC welding process and a DC welding process. 1. An engine driven welder-generator , comprising:an engine;a generator driven by the engine to produce an alternating current (AC) power output; wherein a first portion of the AC power output is provided as an AC weld power output;a rectifier configured to receive a second portion of the AC power output and to rectify the second portion of the AC power output to produce a rectified output; anda chopper circuit configured to receive and to chop the rectified output from the rectifier and to output a direct current (DC) weld power output.2. The engine driven welder-generator of claim 1 , wherein the chopper circuit is further configured to process the chopped rectified output as an AC signal.4. The engine driven welder-generator of claim 1 , wherein a portion of the AC weld power output is provided as an AC auxiliary power output.5. The engine driven welder-generator of claim 1 , wherein the engine is configured to run at approximately 2400 rpm when an AC power output is not desired.6. The engine driven welder-generator of claim 1 , wherein the engine is configured to run at approximately 3600 rpm when an AC power output is desired.7. The engine driven welder-generator of claim 1 , comprising a control circuit configured to detect the presence of an auxiliary load demand and to regulate the engine to approximately 3600 rpm when the auxiliary load demand is detected.8. The engine driven welder-generator of claim 1 , comprising AC stator windings ...

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Номер записи: 55
28-11-2013 дата публикации

GAS SHIELDING DEVICE

Номер: US20130313229A1
Автор: COMON Pierre, Herve Nicolas, Rivoal Jean-Claude
Принадлежит: AIRCELLE

A gas shielding device used during a welding step in a controlled atmosphere of a sound attenuation panel includes an inert gas injector to inject inert gas onto the panel and a housing to receive a welding torch. The inert gas injector comprises an inert gas diffuser mounted on the periphery of the housing for receiving the welding torch. 1. A gas shielding device used during a welding step in a controlled atmosphere of a sound attenuation panel , comprising:means to inject inert gas onto said panel; andmeans for receiving a welding torch,wherein the means to inject the inert gas comprise an inert gas diffuser mounted on the periphery of the means for receiving the welding torch.2. The device according to claim 1 , wherein the device is adapted to cooperate with the welding torch and to allow welding perpendicular to and on the reverse side of surfaces of the panel to be welded.3. The device according to claim 2 , wherein the means for receiving the welding torch comprise a housing adapted to receive the welding torch and enable it to pass through a chamber of the device claim 2 , and the diffuser comprises a ring mounted coaxially to the housing receiving the welding torch.4. The device according to claim 1 , wherein the diffuser is configured to ensure non-turbulent feeding of the gas onto surfaces of the panel to be welded.5. The device according to claim 3 , wherein the diffuser is adapted to diffuse the gas indirectly onto the surfaces to be welded claim 3 , the ring of the diffuser comprising gas outlet orifices on its periphery directed towards the concavity of the chamber.6. The device according to claim 1 , wherein the device further comprises a honeycomb grating with through-orifices which is positioned facing surfaces to be welded so as to perform welding through the device. This application is a continuation of International Application No. PCT/FR2012/050192, filed on Jan. 30, 2012, which claims the benefit of FR 11/50705, filed on Jan. 31, 2011. The ...

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Номер записи: 56
28-11-2013 дата публикации

GAS-COOLED WELDING GUN FOR AN ARC WELDING DEVICE

Номер: US20130313241A1
Автор: Zander Peter
Принадлежит:

A gas-cooled welding gun for an arc welding device, comprising an electrically conductive current contact tube disposed concentrically within an electrically conductive outer tube and separated therefrom by an intermediate space. The current contact tube includes a wire guiding channel for a welding wire. A plurality of spacers is disposed at intervals in the intermediate space between the current contact tube and outer tube,. electrically insulating these components from each other. A shielding gas is provided in the intermediate space to cool the system and openings in the spacers allow the gas to flow therethrough. Structures are provided on the current contact tube which increase the overall surface area thereof. Regions of the surface of the current contact tube not covered by spacers are exposed toward the intermediate space and therefore to the shielding gas. 1. A gas-cooled welding gun for an arc welding device having comprising:a current contact tube formed of an electrically conductive material, inside of which a wire guiding channel for a welding wire is formed;an outer tube that surrounds the current contact tube; an intermediate space formed-between the current contact tube and the outer tube; wherein the outer tube is formed of an electrically conductive material; and wherein the intermediate space is formed as a continuous conduit for a shielding gas; andspacers ace disposed between the current contact tube and the outer tube, electrically insulating the current contact tube and the outer tube from one another, wherein these spacers have intermediate openings defined therein in order to allow the shielding gas to pass through, and wherein the spacers are only disposed in partial regions of the intermediate space and that in the remaining regions, the current contact tube with the surface of the electrically conductive material is exposed in the intermediate space, and that, in at least part of the remaining regions in which the current contact tube ...

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Номер записи: 57
05-12-2013 дата публикации

REMOTE POLARITY DETECTION AND CONTROL FOR WELDING PROCESS

Номер: US20130319987A1
Автор: Beistle Edward Gerard, Dantinne Markus Michael, Liebert Scott Stephen
Принадлежит: ILLINOIS TOOL WORKS INC.

A system includes a welding torch, a welding power supply unit, a remote device, and control circuitry. The welding power supply unit is configured to supply power to the welding torch. The remote device is coupled between the welding torch and the welding power supply unit. Additionally, the remote device is configured to detect a polarity of a welding operation. The control circuitry is configured to determine if the detected polarity is appropriate based on one or more welding parameters. Further, the control circuitry is configured to adjust the polarity of the welding operation. 1. A system , comprising:a welding torch;a welding power supply unit configured to supply power to the welding torch;a remote device coupled between the welding torch and the welding power supply unit and configured to detect a polarity of a welding operation; andcontrol circuitry configured to determine if the polarity is appropriate based on one or more welding parameters and to adjust the polarity of the welding operation.2. The system of claim 1 , wherein the remote device comprises detection circuitry configured to detect the polarity of the welding operation.3. The system of claim 2 , wherein the remote device is configured to communicate the polarity to the control circuitry using weld cable communication (WCC) claim 2 , wireless communication claim 2 , wired communication claim 2 , or any combination thereof.4. The system of claim 1 , wherein the remote device comprises a user interface configured to display messages and to enable a user to adjust welding parameters of the welding operation.5. The system of claim 4 , wherein the user interface is configured to display an error message or display a warning light when the polarity is inappropriate.6. The system of claim 1 , wherein the control circuitry is configured to disable the welding operation after a time delay when the polarity is inappropriate.7. The system of claim 6 , wherein the control circuitry is configured to re- ...

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Номер записи: 58
05-12-2013 дата публикации

System and method for pairing welding devices

Номер: US20130319988A1
Автор: Andrew D. Nelson, Edward G. Beistle
Принадлежит: ILLINOIS TOOL WORKS INC

Systems and methods for pairing welding devices in a welding system. In one method, the method includes sending a pairing request from a first welding device to a second welding device. The method also includes receiving, at the first welding device, a response to the pairing request from the second welding device. The second welding device is physically connected to the first welding device. The pairing request or the response includes a change in welding power, welding consumables, or any combination thereof The method includes pairing the first welding device and the second welding device after the first welding device receives the response to the pairing request from the second welding device.

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Номер записи: 59
12-12-2013 дата публикации

Electrode diameter sensing consumables

Номер: US20130327746A1
Автор: Bradley William HEMMERT, Mark Steven KADLEC
Принадлежит: ILLINOIS TOOL WORKS INC

The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.

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Номер записи: 60
12-12-2013 дата публикации

WELDING SYSTEM INRUSH CURRENT CONTROL SYSTEM AND METHOD

Номер: US20130327748A1
Автор: Beistle Edward G., Salsich Anthony Van Bergen
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding component, such as a remote pendant or wire feeder includes an inrush current control circuit. The welding component may be coupled to a welding power source when the power sources is live and outputting power. Power is stored in the component, such as in capacitors, for operation of a local power supply, such as for an operator interface, display, and the like. Upon connection to the power source, the current application to the capacitors may be delayed to reduce or prevent arcing. The inrush current may also be limited, as may the voltage, to similarly reduce arcing and to provide additional benefits. 1. A welding component configured to receive power from a welding power supply , the welding component comprising:an energy storage circuit that stores electrical energy when coupled to the welding power supply and provides power for operation of the welding component at least during a period of operation of the welding component;a switching device configured to be open during connection of the welding component to the welding power supply, and to close after connection to charge the energy storage circuit; anda current control circuit coupled to the switching device and configured to close the switching device to regulate application of current to the energy storage circuit upon connection of the welding component to the welding power supply.2. The welding component of claim 1 , wherein the current control circuit is configured to limit inrush current into the energy storage circuit upon connection of the welding component to the welding power supply.3. The welding component of claim 2 , comprising electrical components coupled to a gate of the switching device to modulate operation of the switching device and thereby to limit the inrush current.4. The welding component of claim 1 , wherein the current control circuit is configured to limit arcing of contacts connecting the welding component to the welding power supply.5. The welding component of claim 4 , ...

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Номер записи: 61
12-12-2013 дата публикации

Polarity sensing welding wire feeder system and method

Номер: US20130327751A1
Автор: Anthony Van Bergen Salsich, Edward G. Beistle
Принадлежит: ILLINOIS TOOL WORKS INC

A welding wire feeder includes a welding wire feed drive configured to drive welding wire towards a welding application, wire feed control circuitry coupled to and configured to control the welding wire feed drive. The welding wire feeder includes power conversion circuitry configured to receive polarized input power from a welding power source via input connections with defined polarities and to convert the polarized input power to welding output, sensing circuitry configured to detect the polarity of the polarized input power when connected to the input connections, and welding process control circuitry. The welding process control circuitry is coupled to the power conversion circuitry and the sensing circuitry. The welding process control circuitry is configured to provide the polarized input power to the power conversion circuitry only if the polarity of the polarized input power corresponds to the defined polarities of the input connections.

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Номер записи: 62
12-12-2013 дата публикации

WELDING WIRE FEEDER POWER CONTROL SYSTEM AND METHOD

Номер: US20130327752A1
Автор: Beistle Edward G., Salsich Anthony Van Bergen
Принадлежит: ILLINOIS TOOL WORKS INC.

A method of operating a welding wire feeder includes receiving an input power signal from a power source and converting the input power signal to a bus power signal on an internal bus at a first time with a boost converter. The method also includes detecting bus voltage and bus current of the bus power signal on the internal bus and converting the bus power signal to a welding output signal at a second time with a buck converter. The welding output signal is suitable for a controlled waveform welding process. The method also includes detecting output voltage and output current of the weld output, and reducing a voltage ripple on the internal bus based at least in part on the detected bus and output current and/or voltages. 1. A welding wire feeder comprising:a welding wire feed drive configured to drive welding wire towards a welding application;wire feed control circuitry coupled to the welding wire feed drive and configured to control the drive of welding wire towards the welding application;a boost converter configured to receive input power and to convert the input power to bus power applied to an internal bus;a buck converter coupled to the internal bus and configured to convert the bus power to welding output suitable for a welding application;input voltage and current sensors configured to measure input voltage and input current of the input power, respectively;output voltage and current sensors configured to measure output voltage and output current of the welding output, respectively; andcontrol circuitry coupled to the boost converter, to the buck converter, to the input voltage and current sensors, and to the output voltage and current sensors, wherein the control circuitry is configured to drive the boost converter to reduce voltage ripple on the internal bus based upon at least one of the input voltage, the input current, the output voltage, or the output current.2. The welding wire feeder of claim 1 , wherein the control circuitry is configured to ...

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Номер записи: 63
12-12-2013 дата публикации

CONTROLLED WAVEFORM WELDING WIRE FEEDER SYSTEM AND METHOD

Номер: US20130327753A1
Автор: Dantinne Markus Michael, Roth Michael William, Ryan Joseph Robert, Salsich Anthony Van Bergen, Veik Brian James
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding wire feeder includes a welding wire feed drive configured to drive welding wire towards a welding application and wire feed control circuitry coupled to the welding wire feed drive. The wire feed control circuitry is also configured to control the drive of welding wire towards the welding application. The welding wire feeder also includes power conversion circuitry and welding process control circuitry coupled to the power conversion circuitry. The power conversion circuitry is configured to receive input power from a welding power source and to convert the input power to controlled waveform welding output. The welding process control circuitry is configured to provide control signals for conversion of the input power to the controlled waveform welding output. The welding wire feeder also includes a process operator interface coupled to the welding process control circuitry and configured to permit operator selection of a controlled waveform welding process. 1. A welding wire feeder comprising:a welding wire feed drive configured to drive welding wire towards a welding application;wire feed control circuitry coupled to the welding wire feed drive and configured to control the drive of welding wire towards the welding application;power conversion circuitry configured to receive input power from a welding power source and to convert the input power to controlled waveform welding output;welding process control circuitry coupled to the power conversion circuitry and configured to provide control signals for conversion of the input power to the controlled waveform welding output; anda process operator interface coupled to the welding process control circuitry and configured to permit operator selection of a controlled waveform welding process.2. The welding wire feeder of claim 1 , wherein the process operator interface is coupled to the wire feed control circuitry and is configured to permit operator selection of wire or wire parameters.3. The welding wire ...

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Номер записи: 64
12-12-2013 дата публикации

WELDING WIRE FEEDER POWER APPLICATION SYSTEM AND METHOD

Номер: US20130327754A1
Автор: Beistle Edward G., Ott Brian Lee, Salsich Anthony Van Bergen
Принадлежит: ILLINOIS TOOL WORKS INC.

A method of operating a welding wire feeder includes receiving an input power from a welding power source, actuating a power relay to close and open a first current carrying path for application of the input power, and actuating bypass circuitry coupled in parallel to the power relay to close and open a second current carrying path in coordination with actuating the power relay. The method of operating the welding wire feeder also includes providing a welding wire to a welding torch. 1. A welding wire feeder comprising:a welding wire feed drive configured to drive welding wire towards a welding application;wire feed control circuitry coupled to the welding wire feed drive and configured to control the drive of welding wire towards the welding application;a power relay configured to receive input power and to close to convey the input power to an operational component of the welding wire feeder, wherein the operational component comprises the welding wire feed drive, the wire feed control circuitry, or any combination thereof;bypass circuitry coupled in parallel to the power relay and configured to carry the input power during opening and closing of the power relay; andcontrol circuitry coupled to the power relay and to the bypass circuitry, wherein the control circuitry is configured to apply signals to the power relay to close and to open a first current carrying path of the input power to the operational component through the power relay, and the control circuitry is configured to apply the signals to the bypass circuitry to close and to open a second current carrying path of the input power to the operational component through the bypass circuitry in coordination with closing and opening the power relay.2. The welding wire feeder of claim 1 , wherein signals for closing the power relay and for closing the second current carrying path through the bypass circuitry are applied substantially simultaneously.3. The welding wire feeder of claim 1 , wherein the power ...

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Номер записи: 65
12-12-2013 дата публикации

WELDING HEAD COMPRISING A MOVABLE ELECTRODE AND RELATED WELDING METHOD

Номер: US20130327755A1
Автор: Weiss Daniel
Принадлежит:

The invention relates to a welding head () comprising a heat-resistant electrode () for carrying out TIG welding operations on workpieces, in which the electrode () is movably mounted and can also be caused to move by a device (). The electrode () preferably carries out either a rotating movement about the axis (A) thereof or an oscillating movement about said axis. During a preferably manual welding operation, undesired alloying-up is thus excluded during accidental contact between the electrode () and the workpiece to be welded. Moreover, repeated adhesion of liquefied welding filler material to the electrode () can be substantially prevented in the event that a welding filler material is supplied. With welding heads () which are cooled by means of a fluid circuit, said circuit, in cooperation with a turbine, can also be used to drive a rotating electrode (). The movable electrode () can be connected to the voltage source thereof either via a sliding contact or via an electrically conducting liquid surrounding the electrode (). The invention further relates to a method in which the welding head () according to the invention is used. 1182328721202. A welding head () , in particular for manually welding metallic work pieces () acting as electrical mass , with a heat-resistant electrode () guiding the welding current , whereby the welding operating is brought about by an arc () starting from the electrode () and running to the work piece () and fed by a voltage source , and whereby welding material () that may become necessary is supplied , characterized in that the electrode () is movably supported in the welding head () and that the latter contains a device () that , after it has been put in operation , puts the electrode () in motion.2120. The welding head () according to claim 1 , characterized in that the device () is put in operation at the latest with the beginning of the welding operation and is automatically cut off again after its ending.31204. The welding ...

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Номер записи: 66
26-12-2013 дата публикации

METHOD FOR BONDING DISSIMILAR METALS TO EACH OTHER

Номер: US20130341306A1
Автор: EGUCHI Noritaka, Kinefuchi Masao, Murai Yasuo
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

In the bonding of an aluminum alloy material () to a steel material () by TIG welding, a tungsten electrode () which has a tip having a diagonally cut tip face () and asymmetrical to the electrode center axis () is used. The tungsten electrode () is oriented toward the welding line from the upper side of the aluminum alloy material () in such a manner that the tip face side of the tungsten electrode () faces the aluminum alloy material () side and the tip () of the tip face () faces the steel material () side. In this manner, an arc () from the tip () is directed to the steel material () side. 1. A method for bonding dissimilar metals to each other , comprising:overlaying at least a part of an aluminum alloy material on a steel material; andfillet welding the aluminum alloy material and the steel material by DC TIG welding using a bar-like tungsten electrode while feeding a flux-cored wire to a step section formed by an end of the aluminum alloy material and a surface of the steel material with an aluminum alloy material side being made a positive pole,whereinthe tungsten electrode comprises a tip of a shape asymmetric with respect to an axis of the tungsten electrode,the tip comprises a tip surface shaped at an angle of 20° or more and 40° or less relative to the axis, andduring said fillet welding, an arc generated from the tip of the tungsten electrode is directed to a steel material side by directing the tungsten electrode to a welding line from an upper side of the aluminum alloy material so that the tip of the tungsten electrode is directed to the steel material side and that the tip surface is directed to the aluminum alloy material side.2. The method according to claim 1 , wherein the tip of the tungsten electrode locates right above the welding line of the aluminum alloy material.3. A method for bonding dissimilar metals to each other claim 1 , comprising:overlaying at least a part of an aluminum alloy material on a steel material; andfillet welding the ...

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Номер записи: 67
26-12-2013 дата публикации

WELDER WITH INTEGRATED WIRE FEEDER HAVING SINGLE-KNOB CONTROL

Номер: US20130341307A1
Автор: Sickels Darrell L.
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding-type component is disclosed having a single user input that requires a user to input only a single parameter to identify a welding-type process. From the single input, operating parameters for the welding-type process automatically are set or otherwise determined. The invention streamlines the welding-type process prescription process by allowing a user to input only a single parameter than can be used to determine and coordinate other parameters for the welding-type process. 122.-. (canceled)23. A tungsten inert gas (TIG) welding system , comprising: a power input configured to receive an input power into the enclosure for power conversion;', 'a power output configured to deliver welding power from the enclosure to a welding torch to perform a TIG welding process on a workpiece;', 'a control panel having a single input device configured to allow a user to select a characteristic of the workpiece; and', 'circuitry configured to establish operating parameters for the TIG welding process based on the selected characteristic of the workpiece., 'an enclosure comprising24. The TIG welding system of claim 23 , wherein the single input device comprises a single control selector.25. The TIG welding system of claim 24 , wherein the single control selector is a single control knob rotatably positionable to one of a plurality of positions.26. The TIG welding system of claim 25 , wherein each position corresponds to a discrete material thickness to be welded.27. The TIG welding system of claim 25 , wherein each position corresponds to a range of material thicknesses to be welded.28. The TIG welding system of claim 23 , wherein the operating parameters established comprise a weld voltage of the TIG welding system.29. The TIG welding system of claim 23 , comprising a wire feeder configured to deliver filler material to a weld claim 23 , wherein the wire feeder speed is proportional to a weld voltage set by the circuitry.30. The TIG welding system of claim 23 , wherein ...

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Номер записи: 68
26-12-2013 дата публикации

WIRE FEEDER DRIVE ASSEMBLY AND METHOD

Номер: US20130341314A1
Автор: Burns Marlin E., Gibbons Eugene G., Sickels Darrell L
Принадлежит: Hobart Brothers Company

A drive assembly is provided for driving welding wire through a welding wire feeder. The drive assembly comprises an insulating base and a conductive base secured to one another. Both bases have features that allow for mounting in the wire feeder and for mounting various drive components. The conductive base is energized during operation, and the isolative base insulates the conductive base from components of the wire feeder enclosure. Features of the assembly improve operation and facilitate assembly. 1. A welding wire drive comprising:a conductive base configured to remain at a welding power potential during operation and to support drive components to draw welding wire from a spool and to advance the welding wire towards a welding torch, the conductive base transferring power to a torch cable during operation; andan insulating base secured to the conductive base and insulating the conductive base from an enclosure in which the drive is disposed, the insulating base having at least one extension to prevent foreign objects from entering into contact with the enclosure and the conductive base.2. The welding wire drive of claim 1 , wherein an insulating extension of the insulating base is disposed near a lower extremity of the insulating base.3. The welding wire drive of claim 1 , comprising a motor and gear reducer assembly supported on a side of the insulating base opposite the conductive base.4. The welding wire drive of claim 3 , wherein the motor and gear reducer assembly is supported by fasteners extending through a first set of apertures in the insulating base and a second set of apertures in the conductive base claim 3 , wherein the apertures are disposed to permit the motor and gear reducer assembly to be mounted in any one of a plurality of angular orientations.5. The welding wire drive of claim 4 , wherein the first set of apertures includes fewer apertures than the second set of apertures.6. The welding wire drive of claim 5 , wherein the insulating base ...

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Номер записи: 69
02-01-2014 дата публикации

SUBMERGED ARC WELDING SYSTEM WITH PRESSURIZED FLUX DELIVERY AND WELDING TORCH

Номер: US20140001160A1
Автор: MATE David A.
Принадлежит: LINCOLN GLOBAL, INC.

A submerged arc welding system includes a robot having a first arm connected to a second arm, and at least one wire supply. A welding torch is connected to a first end of the second arm of the robot. A wire motor is mounted to a second end of the second arm of the robot. The wire motor moves wire from the wire supply along a wire path to the welding torch. The system further includes a flux supply and a flux delivery system configured to move flux from the flux supply along a flux path to the welding torch. 1. A submerged arc welding system for use with a robot having at least a base , a first arm rotatably connected to the base , and a second arm rotatably connected to the first arm , the submerged arc welding system comprising:a welding torch having a nozzle, wherein the welding torch is connected to a first end of the second arm of the robot;a wire supply configured to be located distal from the robot;a wire path connecting the wire supply to the nozzle of the welding torch;a wire motor configured to move wire from the wire supply along the wire path to the welding torch, the wire motor being mounted to the robot;a flux supply including a pressurized flux delivery system, the pressurized flux delivery system configured to move flux from the flux supply, along the flux path, to the welding torch, and the flux supply configured to be located distal from the robot;a flux path connecting the flux supply to the nozzle of the welding torch, wherein the flux path does not include a gravity hopper;a flux muffler disposed along the flux path and connected to the welding torch, wherein the flux muffler forms a plurality of vents that vent air from pressurized flux delivery system; anda valve disposed along the flux path between the flux muffler and the nozzle of the welding torch, wherein the valve is biased in a closed position and is configured to control a release of flux from the pressurized flux delivery system to the nozzle.2. The submerged arc welding system of ...

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Номер записи: 70
02-01-2014 дата публикации

Parallel state-based controller for a welding power supply

Номер: US20140001168A1
Автор: Stephen Cole
Принадлежит: Lincoln Global Inc

An arc welding system includes a power converter that outputs a welding waveform based on a welding signal. The power converter is operatively connected to a welding torch to create an electrical arc between the welding torch and a workpiece based on the welding waveform. The arc transfers at least one drop of molten material onto the workpiece. The arc welding system also includes magnetic field system includes a magnetic field generator that generates a magnetic field based a magnetic steering signal and a controller that is operatively connected to the power converter and the magnetic field controller. The controller controls operations of the power converter according to the welding signal and simultaneously controls the magnetic field system according to the magnetic steering signal. The welding signal includes a peak portion and a background portion for each waveform cycle, and the magnetic steering signal includes a peak portion.

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Номер записи: 71
16-01-2014 дата публикации

COVER FOR WELDING WIRE CONTAINER

Номер: US20140014545A1
Автор: Gelmetti Carlo
Принадлежит: SIDERGAS SPA

A cover for a welding wire container has a body portion provided with an elongate slot through which the welding wire can be withdrawn from the container, and at least one flap formed integrally therewith and partially defining the slot. 116-. (canceled)17. A welding wire container lid , said lid comprising:an upper body defining a shape to match a container so that the lid can be secured to the container;side walls extending downward from said upper body;a protrusion extending upward from said upper body in a direction opposite said side walls; andan opening which is elongated in a direction extending from said protrusion onto said surface portion toward said side walls, said opening having a first end disposed on said protrusion and a second end disposed on said upper body spaced apart from said first end in the direction of elongation, said opening further having a first longitudinal side and a second longitudinal side spaced apart across said opening, each of said first and second longitudinal sides extending from said first end to said second end;wherein said first longitudinal side has a first contour and said second longitudinal side has a second contour which is different from said first contour, such that at least a portion of said second longitudinal side is offset in a vertical direction relative to an adjacent portion of said first longitudinal side positioned across said opening from said portion of said second longitudinal side.18. The welding container lid according to claim 17 , wherein said second contour of said second side has a concave shape.19. The welding container lid according to claim 17 , further comprising a retaining member secured to said lid to retain a welding wire to said lid.20. The welding container lid according to claim 19 , wherein said retaining member comprises an elongated groove having two side portions and a channel portion and each of said two side portions contact said lid.21. A welding wire container claim 19 , said ...

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Номер записи: 72
16-01-2014 дата публикации

CORED ELECTRODE FOR REDUCING DIFFUSIBLE HYDROGEN

Номер: US20140014626A1
Автор: Karogal Nikhil, Katiyar Rajeev
Принадлежит: LINCOLN GLOBAL, INC.

A cored electrode to form a weld bead with a low diffusible hydrogen is described in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The filling composition includes a slag forming agent and at least two fluorine containing compounds. 1. A method of forming a weld bead having a low diffusible hydrogen content comprising: said slag forming agent comprising titanium oxide and a titanium oxide containing compound,', 'said titanium oxide constituting a majority weight percent of said slag forming agent and', 'said titanium oxide containing compound constituting at least 3 weight percent of said fill composition,', 'each of said fluorine containing including at least about 0.2 weight percent fluorine based on the weight percent of said fill composition,', 'said fill composition including at least about 0.5 weight percent fluorine, and,, 'providing a cored electrode that includes a metal sheath and a fill composition, said fill composition including a slag forming agent and at least two fluorine containing compounds;'}at least partially melting said cored electrode by an electric current to cause said melted portion of said cored electrode to be deposited on a workpiece.2. The method as defined in claim 1 , wherein{'sub': 3', '2', '2', '3', '6', '3', '6', '2', '6', '2', '6', '3', '2, 'said at least two fluorine containing compounds are selected from the group consisting of AlF, BaF, CaF, NaAlF, KAlF, NaSiF, KSiF, MnF, SrFor mixtures thereof.'}3. The method as defined in claim 2 , wherein{'sub': 3', '3', '6', '3', '6', '3', '2, 'a first fluorine containing compound includes a compound selected from the group consisting of AlF, NaAlF, KAlF, MnF, SrF, and combinations thereof,'}{'sub': 3', '3', '6', '3', '6', '2', '6', '2', '6', '3', '2, 'a second fluorine containing compound includes a compound selected from the group consisting of AlF, NaAlF, KAlF, NaSiF, KSiF, MnF, SrF, and combinations thereof, and further ...

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Номер записи: 73
16-01-2014 дата публикации

METHOD FOR TEACHING/TESTING A MOTION SEQUENCE OF A WELDING ROBOT, WELDING ROBOT AND CONTROL SYSTEM FOR SAME

Номер: US20140014638A1
Автор: Artelsmair Josef
Принадлежит: FRONIUS INTERNATIONAL GMBH

The invention relates to a monitoring module (″) for monitoring an electric arc machining process, sail the module comprising a camera (), a photo flash lamp () and a control system () that controls the photo flash lamp () and a control system () that controls the photo flash lamp () in such a way that it illuminates when the camera () records the image. According to the invention, said the components () are arranged in a common housing (). 293014311. Method according to claim 1 , wherein the welding wire ( claim 1 , ) is again moved to the workpiece ( claim 1 , ) or to the length that may be predetermined () after the interruption.32993014311431. Method according to claim 1 , wherein when the welding head () is adjusted claim 1 , the welding wire ( claim 1 , ) is repeatedly moved to and back from the workpiece ( claim 1 , ) claim 1 , i.e. the contour of the workpiece ( claim 1 , ) is sensed claim 1 , as long as the length (l) has not been achieved.49307. Method according to claim 1 , wherein the speed of feeding back the welding wire ( claim 1 , ) is selected as to be always higher than the speed of the forward motion of the manually controlled welding torch ().53493014311. Method according to claim 1 , wherein the current source () limits the amount of power in such a way that a short-circuit does not result in a melting of the welding wire ( claim 1 , ) and the workpiece ( claim 1 , ) claim 1 , but the contacting of both of them is recognized as soon as possible claim 1 , with however the further monitoring claim 1 , open-loop and closed-loop functions for the actual welding process claim 1 , such as the release of short-circuit claim 1 , the wire feed claim 1 , the protective gas supply claim 1 , the cooling circuit claim 1 , etc. of the welding device () remaining deactivated.6291431930131. Method according to claim 1 , wherein the distance between the welding head () and the workpiece ( claim 1 , ) later during the welding process claim 1 , corresponds to that ...

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Номер записи: 74
23-01-2014 дата публикации

Method and Apparatus For Providing Welding Type Power

Номер: US20140021179A1
Автор: Schartner Quinn W.
Принадлежит: ILLINOIS TOOL WORKS INC.

A method and apparatus for providing welding-type power includes receiving an input that may be either a single or a three phase input voltage. Three power modules, each having a single phase boost power circuit, and an output circuit process the input power. A weld output circuit receives and combines the outputs of the three power modules. An input power distribution module connects the three power modules such that each receives a unique single phase power signal. A controller controls the three power modules and the input power distribution module. 1. A welding-type system , for receiving at least one three phase input voltage on a first power input , a second power input and a third power input , comprising:a first power module comprising a first pair of input connections, a first single phase boost power circuit, and a first output circuit receiving an output of the first single phase boost power circuit, and wherein the first output circuit provides a first output;a second power module comprising a second pair of input connections, a second single phase boost power circuit, and a second output circuit receiving an output of the second single phase boost power circuit, and wherein the second output circuit provides a second output;a third power module comprising a third pair of input connections, a third single phase boost power circuit, and a third output circuit receiving an output of the third single phase boost power circuit, and wherein the third output circuit provides a third output;a weld output circuit, disposed to receive and combine the first, second and third outputs; anda controller, connected to control the first, second and third power modules.2. The welding-type system of claim 1 , further comprising an input power distribution module claim 1 , configurable to connect the first claim 1 , second and third pair of input connections to the first claim 1 , second and third power inputs such that the first claim 1 , second and third pair of input ...

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Номер записи: 75
30-01-2014 дата публикации

SYSTEMS, METHODS, AND APPARATUSES FOR MONITORING WELD QUALITY

Номер: US20140027424A1
Автор: Chantry Bruce J., Daniel Joseph A.
Принадлежит: LINCOLN GLOBAL, INC.

An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications. 117-. (canceled)18. A method of evaluating a plurality of welds performed by an automated electric arc welder under substantially the same conditions and according to substantially the same arc welding process by monitoring the electric arc welder as the welder performs the welds according to the arc welding process by creating actual welding parameters between an advancing wire and a workpiece , said arc welding process controlled by command signals to a power supply of said welder , said method comprising: (a) generating a series of rapidly repeating wave shapes, each wave shape constituting a weld cycle with a cycle time;', '(b) dividing said wave shapes into states;', '(c) measuring a selected weld parameter occurring in one of said states at an interrogation rate over a period of time to obtain a data set for said selected weld parameter;', '(d) for each period of time, calculating a quality value for said selected weld parameter from said data set;', '(e) comparing each quality value to an expected quality value to determine if a difference between said quality value and said expected quality value exceeds a predetermined threshold;', '(f) if said difference exceeds said threshold, weighting said quality value with a magnitude weight based on said difference, and weighting said quality value with a time contribution weight based on a time contribution of said state to its wave shape; and', '(g) using all of said quality values, including ...

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Номер записи: 76
30-01-2014 дата публикации

WELDER GENERATOR ENGINE SPEED CONTROL

Номер: US20140027428A1
Автор: DuVal Randall J., Fosbinder Daniel C., Jochman Nathan J., Leisner John C., Wierschke Christopher J.
Принадлежит:

An engine-driven welder generator is controlled based upon power draw for welding and other applications. Once a welding arc is initiated, the power draw is monitored. The engine speed, and therefore the power output of the generator, may be increased or maintained based upon the power draw. The power draw may include both welding power draw and auxiliary power draw. The engine speed is increased in increments. The initial engine speed and subsequent increments may depend upon particular welding processes or regimes. 1. A welding system comprising:an engine-driven generator comprising an internal combustion engine drivingly coupled to a generator;power conversion circuitry coupled to the generator and configured to convert power output by the generator to power suitable for welding;a welding torch that in operation receives power from the power conversion circuitry for initiating and maintaining a welding arc;at least one sensor configured to sense parameters of the power draw from the generator; andcontrol circuitry configured to receive signals from the sensor, to determine power draw from the generator, and to control speed of the engine based upon the power draw.2. The welding system of claim 1 , comprising voltage and current sensors claim 1 , and wherein the control circuitry is configured to compute power draw based upon sensed voltage and current.3. The welding system of claim 1 , wherein the control circuitry is configured to command operation of the engine at a first speed claim 1 , and to increase the engine speed in increments based upon the power draw.4. The welding system of claim 3 , wherein the control circuitry implements successive steps of power calculation and commands the engine speed to remain at a determined level or to increase based upon the power draw.5. The welding system of claim 4 , wherein the control circuitry is configured to command increases in engine speed as required by the power draw following initiation of a welding arc claim 4 ...

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Номер записи: 77
30-01-2014 дата публикации

METHOD FOR DYNAMIC FEED PRESSURE ADJUSTMENT

Номер: US20140027429A1
Автор: Chantry Bruce John
Принадлежит: LINCOLN GLOBAL, INC.

The invention relates to devices, systems, and methods for automatic feed adjustment during welding operations using a pressure measuring device and a welding wire knowledge database to adjust tension between at least one pair of wire feed rolls, at least one of which is a drive roll. 1. A process for controlling tension between wire feed rollers on a welding wire comprising the steps of:feeding a wire through at least one pair of rollers, at least one of said pair of rollers being a drive roller, said at least one pair of rollers having a tension therebetween;measuring an observed speed of the wire after it exits from between the pair of rollers;comparing a driven speed of the wire, said driven speed calculated based upon a motor speed and a roller diameter of at least one of the rollers, with the observed speed of the wire as measured by a wire speed sensor as the wire passes the wire speed sensor; andat least periodically measuring said tension between said at least one pair of rollers using a pressure measuring means;communicating said driven speed, said observed speed and said tension to a knowledge database of specific wire parameters to determine whether a mismatch between said driven speed and said observed speed is attributable to tension between said at least one pair of rollers or to other factors; andautomatically adjusting the tension between the pair of rollers if said step of communicating with said knowledge database determines that said tension needs to be increased or decreased.2. The method of whereinsaid pressure measuring means is selected from the group consisting of force summing devices, mechanical pressure gauges, electromechanical pressure sensors, strain gauge transducers, bonded and unbounded strain gauges, sputtered strain gauges, semiconductor strain gauges, bonded discrete silicon strain gauges, diffused diaphragm sensors, sculptured diaphragm sensors, variable capacitance transducers, piezoelectric transducers, piezoresistive sensors, ...

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Номер записи: 78
06-02-2014 дата публикации

WELDING PURGE CONTROL USING ELECTRONIC FLOW CONTROL

Номер: US20140034619A1
Автор: Ales Richard A., Mussig Michael, Ponikvar William, Silk Kevin, Stafford David N.
Принадлежит: Swagelok Company

A purging arrangement for a welding system uses automatic flow control function, such as an MFC, to control purge gas flow rate and/or pressure at the weld site. 113-. (canceled)14. Welding system , comprising:a welder power supply, said welder power supply being connectable to an orbital weld head for providing electrical power during a welding operation.,at least one mass flow controller,a control system operably coupled to said at least one mass flow controller, said control system being configured to control flow rate of a purge gas from said mass flow controller,a housing that encloses said power supply, said at least one mass flow controller and said control system.15. The welding system of wherein said housing comprises a handle that can be manually grasped for portability of the welding system.16. The welding system of wherein said control system is operably coupled to said welder power supply and inhibits a welding operation until a purging operation starts.1720-. (canceled)21. A method for controlling purging during a welding operation claim 14 , comprising:performing a butt welding operation on end to end abutting tubular workpieces using an orbital welder,applying a flow rate profile for purge gas to either an outer diameter region or an inner diameter region at the weld site,said flow rate profile comprising at least a first flow rate before a welding operation begins and a second flow rate during the welding operation with said second flow rate being lower than said first flow rate.22. The method of wherein said step of applying a flow rate profile for purge gas to either an outer diameter region or an inner diameter region at the weld site comprises a third flow rate after the welding operation ends with said third flow rate being higher than said second flow rate.23. The method of wherein said step of applying a flow rate profile includes using an electronic automatic purge control.24. The method of wherein a welding operation is automatically ...

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Номер записи: 79
06-02-2014 дата публикации

WELDING WIRE FEED SYSTEM AND METHOD

Номер: US20140034627A1
Автор: Ertmer Jonathan R., Lenzner Jeff, Stanzel Kenneth A., Woodward Ronald D.
Принадлежит: ILLINOIS TOOL WORKS INC.

In one embodiment, a system is provided with a welding wire feeder that includes a first wheel having a first rotational direction, and a second wheel having a second rotational direction opposite from the first rotational direction. The first and second wheels are disposed compressively about a wire feed region, and the first and second wheels are drivingly coupled together to output substantially equal tangential speeds in the wire feed region. In addition, the first wheel, or the second wheel, or both the first and second wheels comprise a drive wheel directly coupled to a gear without separately coupling both the drive wheel and the gear to a shaft. 1. A system comprising: a first wheel having a first rotational direction; and', 'a second wheel having a second rotational direction opposite from the first rotational direction, wherein the first and second wheels are disposed compressively about a wire feed region, and the first and second wheels are drivingly coupled together to output substantially equal tangential speeds in the wire feed region, wherein the second wheel comprises a bearing press fitted within an outer shell, and wherein the first wheel is coupled to a drive shaft and the bearing of the second wheel is coupled to an arm of a wire compression adjuster., 'a welding wire feeder, comprising2. The system of claim 1 , wherein the first and second wheels are directly geared together.3. The system of claim 1 , comprising first and second gears directly coupled to the first and second wheels claim 1 , respectively claim 1 , wherein the first and second gears mate with one another without an intermediate transmission.4. The system of claim 1 , comprising a motor coupled to the drive shaft.5. The system of claim 1 , wherein the arm of the wire compression adjuster is rotatable about a joint.6. The system of claim 5 , wherein the wire compression adjuster comprises a positional adjuster coupled to a peripheral end of the arm opposite from the joint.7. The ...

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Номер записи: 80
13-02-2014 дата публикации

SYSTEM AND METHOD OF EXPORTING OR USING WELDING SEQUENCER DATA FOR EXTERNAL SYSTEMS

Номер: US20140042137A1
Автор: Daniel Joseph, ENYEDY Edward, Henry Judah
Принадлежит: LINCOLN GLOBAL, INC.

The invention described herein generally pertains to a system and method for collecting one or more welding parameters or a weld time during creation of one or more welds using a welding sequence. The one or more welding parameters and/or weld time for each welding sequence is utilized to determine an estimation of consumable depletion for a welding work cell and/or a repair/service to perform on equipment within the welding work cell. Furthermore, the weld time and/or welding parameters can be utilized to manage inventory for a plurality of welding work cells within a welding environment. Other embodiments provided track a cost for a performance of a weld with a welding sequence as well as identifying a workpiece to communicate information related to the one or more welds used for assembly. 1. A welder system , comprising:a welding job sequencer component that is configured to identify a welding sequence for a welding work cell, wherein the welding sequence defines at least a parameter and a welding schedule for a first welding procedure to create a first weld on a workpiece and a second welding procedure to create a second weld on the workpiece;the welding job sequencer component is further configured to utilize the welding sequence in the welding work cell to automatically configure welding equipment to perform the first welding procedure and the second welding procedure on the workpiece without intervention from the operator; anda collection component that is configured to track a weld time for at least one of the first weld or the second weld performed with the welding sequence; anda manager component that is configured to ascertain an estimation of consumable depletion based on the weld time for the welding sequence used to perform the first weld or the second weld.2. The welder system of claim 1 , further comprising a weld score component that is configured to evaluate at least one of the first weld or the second weld performed on the workpiece by the ...

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Номер записи: 81
13-02-2014 дата публикации

Method for Weld Removal, Cutting, and Gouging With Vacuum Removal of Byproducts

Номер: US20140042141A1
Автор: Charles Klangos
Принадлежит: WeldVac LLC

A method for metalworking using an adjustable vacuum and support system for evacuating particulate matter, smoke, excess gas, and molten metal from a work area during welding and for providing adjustable support to a welding head. The vacuum system has a vacuum head and a vacuum nozzle. An adjustable mounting bracket has a first portion fixed to the vacuum head and a second portion securable to the welding head. The bracket arrangement establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. The support surface can be a base bevel surface at the tip of the nozzle, and an opposed suction bevel surface can have a nozzle aperture interposed therealong.

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Номер записи: 82
20-02-2014 дата публикации

SYSTEMS AND METHODS FOR DIAGNOSING SECONDARY WELD ERRORS

Номер: US20140048517A1
Автор: Bunker Thomas A., Casner Bruce A., Davidson Robert R., Dessart Nicholas James, Kowaleski Anthony J., Schuh Richard
Принадлежит: ILLINOIS TOOL WORKS INC.

A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range. 1. A controller for a welding system , configured to:determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter;compare the determined value to a reference value range; andalert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range.2. The controller of claim 1 , further configured to receive an input from the user regarding a negative weld lead length claim 1 , and to determine the referenced value range based on the negative weld lead length.3. The controller of claim 1 , further configured to receive an input from the user regarding a negative weld lead size claim 1 , and to determine the referenced value range based on the negative weld lead size.4. The controller of claim 1 , further configured to receive an input from the user regarding a positive weld lead length claim 1 , and to determine the referenced value range based on the positive weld lead length.5. The controller of claim 1 , further configured to receive an input from the user regarding a positive weld lead size claim 1 , and to determine the referenced value range based on the positive weld lead size.6. The controller of claim 1 , further configured to receive an input from the user regarding a welding torch manufacturer claim 1 , and to determine the referenced value range based on the welding torch manufacturer.7. The controller of claim 1 , further configured to receive an input from the user regarding a welding torch model number claim 1 , and to determine the referenced value range ...

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Номер записи: 83
20-02-2014 дата публикации

WIRELESS COMMUNICATION NETWORK FOR CONTROL OF INDUSTRIAL EQUIPMENT IN HARSH ENVIRONMENTS

Номер: US20140048522A1
Автор: Dina Daniel, Downie Kathy Lee
Принадлежит: ILLINOIS TOOL WORKS INC.

In certain embodiments, a system includes a master node device. The master node device includes communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network. 1. A system , comprising: 'communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network.', 'a master node device comprising2. The system of claim 1 , wherein the long-range communication link comprises a wireless communication link having a transmission range of approximately 300 feet or more from the master node device to the welding power supply unit.3. The system of claim 1 , wherein the short-range wireless communication network comprises a wireless communication network having a transmission range of approximately 20-25 feet from the master node device.4. The system of claim 1 , wherein the one or more welding-related devices comprise a welding wire feeder.5. The system of claim 1 , wherein the one or more welding-related devices comprise a welding torch.6. The system of claim 1 , wherein the one or more welding-related devices comprise a welding helmet.7. The system of claim 1 , wherein the one or more welding-related devices comprise a welding pendant.8. The system of claim 1 , wherein the one or more welding-related devices comprise a welding foot pedal.9. The system of claim 1 , wherein a welding-related device of the one or more welding-related devices comprises the master node device.10. The system of claim 1 , wherein the master node device comprises weld cable communication circuitry configured to facilitate welding cable communication with the welding power supply unit via a weld cable.11. The ...

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Номер записи: 84
27-02-2014 дата публикации

Drive Roll Carrier for Welding Wire Feeder

Номер: US20140054349A1
Автор: Lahti Thomas D., Matiash Nicholas A.
Принадлежит: ILLINOIS TOOL WORKS INC.

A drive roll carrier is provided for use with a wire feeder for a welder that includes a hub that can be rotated by a gear and that may include at least one lug that extends longitudinally along and radially out from the hub and at least one retainer that extends from an outer surface of the hub. The retainer may be fixed in a longitudinal direction with respect to the hub and may be movable in a radial direction for allowing mounting of a drive roll onto the hub. An outer end of the lug may include an alignment segment that has a different profile shape than the rest of the lug to facilitate alignment of a mounting groove of the drive roll with the lug. 1. A drive roll carrier for supporting a drive roll in a wire feeder of a welder , the drive roll carrier comprising:a gear that can be driven to rotate;a hub defining an outer circumferential surface and supporting a drive roll to convey a welding wire, the hub arranged with respect to the gear so that rotation of the gear is translated into rotation of the hub and the drive roll, the hub including an inner end relatively closer to the gear and an outer end relatively farther from the gear and configured to receive the drive roll for mounting the drive roll on the drive roll carrier;a retainer that extends from the outer circumferential surface of the hub and fixed in a longitudinal direction with respect to the hub and movable in a generally radial direction with respect to the hub for accommodating mounting of and selectively holding the drive roll on the drive roll carrier; anda lug that extends longitudinally with respect to the hub and radially outward of the hub outer circumferential surface, the lug engaging the drive roll for transferring rotation of the hub to the drive roll and having an outer end that is arranged closer to the hub outer end than the retainer so that the drive roll engages the outer end of the lug to align the drive roll with the lug while mounting the dive roll on the drive roll carrier. ...

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Номер записи: 85
06-03-2014 дата публикации

WELDING WIRE FEED SPEED CONTROL SYSTEM AND METHOD

Номер: US20140061176A1
Автор: Morrow Kelley, Roehl Chris, Stanzel Kenneth A., Vogel Bernard J.
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding system is disclosed in which the rate of advancement of wire electrode is determined automatically. The device can include a control circuit that determines the rate of advancement of the wire electrode in response to a signal from the voltage selection device of the welding system. Depending upon the operator selected voltage which is selected via the voltage selection device, the control circuit will determine the appropriate rate of wire electrode advancement and control the advancement mechanism (e.g., electric motor) accordingly. Linking of the voltage level and wire-feed speed controls facilities easy of use for more novice operators and, furthermore, facilitates single-handed adjustment of two operational parameters during a welding process. 1. A welding system , comprising:a power source configured to provide welding power to a welding torch;a wire feeder configured to advance wire electrode into the welding torch at a rate of advancement;a first input control device configured to adjust a setting corresponding to a voltage output level for the power source;a second input control device configured to adjust a setting corresponding to the rate of advancement, wherein the second input control device comprises a setting that corresponds to an automatic adjustment mode for wire feed speed adjustment; and receiving signals from the first input control device corresponding to a selected setting of the first input control device;', 'receiving signals from the second input control device corresponding to a selected setting of the second input control device;', 'setting the voltage output level of the power source corresponding to the selected setting of the first input control device;', 'automatically determining and setting the rate of advancement based on the selected setting of the first input control device when the selected setting of the second input control device corresponds to the automatic adjustment mode; and', 'setting the rate of advancement ...

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Номер записи: 86
06-03-2014 дата публикации

SELF-ALIGNING WIRE FEEDER ASSEMBLY

Номер: US20140061277A1
Автор: Matiash Nicholas A., Sammons Michael A.
Принадлежит: ILLINOIS TOOL WORKS INC.

A wire feeder comprises a motor and drive roll assembly. The motor and drive roll assembly comprises a base assembly having a left hand side and a right hand side. A first locating mechanism is on the right hand side and a second locating mechanism is on the left hand side. Modules, such as inlet or outlet guides can be located and mounted, preferably on either side. Each module preferably includes an additional locating mechanism to allow an additional module to be located by the additional locating mechanism. The locating mechanisms are preferably of the same design, and preferably each includes at least two holes with a locator pin disposed in each hole, and each module being located includes at least locating holes to receive the locator pins. 1. A wire feeder , comprising a motor and drive roll assembly , wherein the motor and drive roll assembly comprises:a base assembly having a left hand side and a right hand side;a first locating mechanism on the right hand side;a second locating mechanism on the left hand side;an inlet guide able to be located by both of the first and second locating mechanisms, and mountable on both of the right and left hand sides; andan outlet guide able to be located by both of the first and second locating mechanisms, and mountable on both of the right and left hand sides.2. The wire feeder of claim 1 , further comprising:a third locating mechanism on the inlet guide;a fourth locating mechanism on the outlet guide; anda third module able to be located by both of the third and fourth locating mechanisms, and wherein the third module is mountable to both of the inlet guide and outlet guide, and further wherein the third module includes a fifth locating mechanism.3. The wire feeder of wherein the first claim 2 , second claim 2 , third claim 2 , fourth and fifth locating mechanisms are of the same design.4. The wire feeder of claim 1 , wherein:the first and second locating mechanisms each include at least two holes with a locator pin ...

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Номер записи: 87
13-03-2014 дата публикации

WELDING SYSTEM WITH MULTIPLE USER INTERFACE MODULES

Номер: US20140069899A1
Автор: DeCoster Randy Alan, Mehn Peter Donald, Nelson Andrew David
Принадлежит: ILLINOIS TOOL WORKS INC.

A welding system user interface module includes a front panel comprising a first input device and a first display screen. The welding system user interface module also includes circuitry comprising a memory storing machine-readable instructions, a processor for executing the machine-readable instructions, and communication circuitry configured to receive UI data from the first input device or a second input device of a remote welding system user interface module, and to broadcast synchronized data to the first display screen and a second display screen of the remote welding system user interface module. 1. A welding system user interface module , comprising:a front panel comprising a first input device and a first display screen; andcircuitry comprising a memory storing machine-readable instructions, a processor for executing the machine-readable instructions, and communication circuitry configured to receive UI data from the first input device or a second input device of a remote welding system user interface module, and to broadcast synchronized data to the first display screen and a second display screen of the remote welding system user interface module.2. The welding system user interface module of claim 1 , wherein the machine-readable instructions comprise instructions for reconciling conflicts between UI data received from the first and second input devices.3. The welding system user interface module of claim 2 , wherein the synchronized data comprises a broadcast token claim 2 , and the UI data comprise a response token claim 2 , wherein reconciliation of the conflicts between the UI data is based at least in part on the broadcast token and the response token.4. The welding system of claim 3 , wherein the response token comprises prioritization information.5. The welding system user interface module of claim 1 , wherein the communication circuitry is configured to communicate with control circuitry internal to a welding system component on which the welding ...

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Номер записи: 88
13-03-2014 дата публикации

WELDING SYSTEMS AND DEVICES HAVING A CONFIGURABLE PERSONAL COMPUTER USER INTERFACE

Номер: US20140069900A1
Автор: Becker William Joshua, Luck John Alan, Stein Alan Edward
Принадлежит: IIIinois Tool Works Inc.

A welding system includes a welding power source having a user interface disposed thereon and a weld controller disposed therein and being adapted to generate a welding power output for use in a welding operation. The welding system also includes a personal computer having control circuitry disposed therein and being removably interfaced with the welding power source via a docking mechanism. When the personal computer is docked within the docking mechanism, the personal computer is enabled for receiving operator input, and the control circuitry communicates with the weld controller to coordinate control of a welding operation in accordance with the operator input. 1. A welding system , comprising:a welding power source comprising a user interface and a weld controller disposed therein and being configured to generate a welding power output for use in a welding operation; anda computer comprising control circuitry disposed therein and being removably interfaced with the welding power source via a docking mechanism, wherein when the computer is docked within the docking mechanism, the computer is enabled for receiving operator input, and the control circuitry communicates with the weld controller to coordinate control of a welding operation in accordance with the operator input.2. The system of claim 1 , comprising a welding torch coupled to the welding power source to receive welding current from the welding power supply during operation for establishing and maintaining a welding arc.3. The system of claim 1 , wherein the personal computer comprises a touch screen interface for receiving the operator input.4. The system of claim 1 , wherein the welding power source comprises a universal serial bus (USB) to RS485 converter.5. The system of claim 1 , wherein the welding power source comprises a universal serial bus (USB) hub and the computer comprises a USB port claim 1 , and the USB port of the computer is configured to bidirectionally exchange data with the USB hub ...

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Номер записи: 89
13-03-2014 дата публикации

Method and Apparatus For Welding With CV Control

Номер: US20140069901A1
Автор: Almy David G., Beck Curt J., Davidson Robert R., Holverson Todd E., Uecker James L.
Принадлежит: ILLINOIS TOOL WORKS INC.

A method and apparatus for welding is disclosed. The output is preferably a cyclical CV MIG output, and each cycle is divided into segments. An output parameter is sampled a plurality of times within one or more of the segments. The CV output is controlled within the at least one segment in response to the sampling. The parameter is output power, a resistance of the load, an output current, an output voltage, or functions thereof in various embodiments. The control loop is preferably a PI or PID loop. The loop may be applied only within a window. The set point may be taught or fixed. The system can be used to weld with a controlled arc length. 132-. (canceled)33. A system for providing welding power , comprising:a welding power supply having a CV output, wherein the output has an output voltage, and is a series of cycles, each cycle having at least two segments;a feedback module connected to the output, having an output parameter feedback signal;a controller, including a sampling module, connected to the feedback module, and an output control signal responsive to the sampling module.34. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of an output power.35. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of a resistance of the load.36. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of the output voltage.37. The system for providing welding power of claim 33 , wherein the controller further comprises an error module connected to the sampling module and having a desired voltage input claim 33 , and wherein the output control signal is responsive to the error module.38. The system for providing welding power of claim 37 , further comprising a gain module connected to the error module claim 37 , and wherein the output control signal is responsive to the gain module.39. The system for providing welding power of claim 38 , further ...

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Номер записи: 90
13-03-2014 дата публикации

Welding system panels

Номер: US20140069903A1
Автор: Nicholas James Dessart, Ryan Lawrence PETERSON, Sunil Kumar Pattnaik
Принадлежит: ILLINOIS TOOL WORKS INC

A welding system includes an enclosure frame. The welding system also includes a side panel having a tab extending along a bottom edge of the side panel. The tab is configured to mate with a complementary slot in the enclosure frame.

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Номер записи: 91
20-03-2014 дата публикации

CO2 GLOBULAR TRANSFER

Номер: US20140076858A1
Автор: Peters Steven R.
Принадлежит: LINCOLN GLOBAL, INC.

The invention described herein generally pertains to a system and method for generating a negative polarity welding output current waveform to control a welding process. An electric arc welding system generates an electric welding waveform with portions in a negative polarity. A cycle of the electric welding waveform includes a background current phase, a short clearing ramp phase after the background current phase, a peak current phase, and a tail-out current phase of the electric welding waveform, wherein the peak current phase provides a negative peak current level, the tail-out current phase provides a monotonically increasing tail-out current level toward the positive background current level, and the short clearing ramp phase provides a decreasing current level in a positive polarity of current for the electric welding waveform. 1. A method of promoting droplet transfer of a welding system , comprising:regulating an output current level of a waveform to a positive polarity background current level to sustain an electric arc between an electrode and a workpiece, producing a molten metal ball on a distal end of the electrode;dropping the output current level below the positive polarity background current level in response to the molten metal ball shorting to the workpiece and extinguishing the electric arc to allow the molten metal ball to wet into a puddle on the workpiece;automatically further decreasing the output current level into a negative polarity below the positive polarity background current level to induce the molten metal ball to pinch off from the distal end of the electrode;increasing the output current level within the negative polarity toward the positive polarity background current level as the molten ball pinches off from the distal end of the electrode onto the workpiece to re-establish an electric arc between the electrode and the workpiece;decreasing the output current level within the negative polarity away from the positive polarity ...

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Номер записи: 92
20-03-2014 дата публикации

WELD BANK DATA STRUCTURES FOR WELDING APPLICATIONS

Номер: US20140076862A1
Автор: Casner Bruce A., Davidson Robert R., Hayes L. Thomas, Kowaleski Anthony J., Schuh Richard J.
Принадлежит: ILLINOIS TOOL WORKS INC.

A data structure for weld programs associates configuration data for a welding system with a plurality of weld programs and weld sequence data. The data structure allows the welding system to be configured for a particular part, operator, or stage in a welding process, and to be easily reconfigured when the part, operator, or stage changes, providing improved efficiency and flexibility in operation. 2. The memory as recited in claim 1 , wherein the weld system configuration selection includes data defining at least one of a semi-automatic claim 1 , automatic claim 1 , and robotic welding configuration for the computerized welding system.3. The memory as recited in claim 1 , wherein the welding process program selection includes data for defining at least one of a metal inert gas claim 1 , pulsed metal inert gas claim 1 , short circuit metal inert gas and a regulated metal deposition process performed by the computerized welding system.4. The memory as recited in claim 1 , wherein the welding process program selection includes data defining at least one of a wire type claim 1 , a wire alloy claim 1 , a material claim 1 , a material thickness claim 1 , and a gas.5. The memory as recited in claim 1 , wherein the weld sequence includes data for defining at least one of a pre-flow period claim 1 , a run-in time claim 1 , an arc start claim 1 , a weld start claim 1 , a weld ramp claim 1 , a weld claim 1 , a crater fill claim 1 , an arc stop claim 1 , a burnback claim 1 , and a post-flow sequence.6. The memory as recited in claim 1 , wherein the welding process command parameter comprises at least one of a voltage claim 1 , a wire feed speed claim 1 , and a trim command level for the computerized welding system.7. The memory as recited in claim 1 , wherein the weld configuration selection includes an operator configuration.8. The memory as recited in claim 6 , wherein the operator configuration comprises at least one of a trigger hold selection and a dual-schedule ...

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Номер записи: 93
20-03-2014 дата публикации

WELD CABLE COMMUNICATIONS CONTROLLER MODULE

Номер: US20140076872A1
Автор: Ott Brian Lee
Принадлежит: ILLINOIS TOOL WORKS INC.

The present invention is directed to a system and method of remotely controlling a welding machine with command signals transmitted to the welding power source across a weld cable connecting the power source to a remote device, such a wire feeder. A transmitter transmits the control commands containing desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder. 125.-. (canceled)26. A welding system comprising:a power source configured to deliver power for a welding process;a remote device operably connected to receive power from the power source via a weld cable; anda communications controller disposed in a housing external to and separate from both the power source and the remote device, wherein the communications controller is configured to communicate control commands between the power source and the remote device via the weld cable.27. The welding system of claim 26 , wherein the remote device is a wire feeder.28. The welding system of claim 27 , wherein the wire feeder is a voltage-sensed wire feeder.29. The welding system of claim 26 , wherein the housing is a retrofit kit configured to be secured to an external surface of the power source.30. The welding system of claim 26 , wherein the housing is a retrofit kit configured to be secured to an external surface of the remote device.31. The welding system of claim 26 , wherein the housing comprises a multi-pin connector configured to secure the housing to an external surface of the power source or the remote device and to facilitate communication of the control commands.32. The welding system of claim 26 , wherein the communications controller is configured to only communicate control commands via the weld cable when the remote device is at idle.33. The welding system of claim 26 , wherein the communications controller is configured to communicate control commands via the weld cable during an ...

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Номер записи: 94
27-03-2014 дата публикации

Systems and methods for low-manganese welding wire

Номер: US20140083981A1
Автор: Joseph C. Bundy, Mario Anthony Amata, Steven Edward BARHORST
Принадлежит: Hobart Brothers LLC

The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core. The tubular welding wire is configured to form a weld deposit on a structural steel workpiece, wherein the weld deposit includes less than approximately 2.5% manganese by weight.

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Номер записи: 95
27-03-2014 дата публикации

MIG- OR MAG-WELDING GUN

Номер: US20140083990A1
Автор: KETTUNEN Erkki Tapio
Принадлежит: Ergowelder Oy

The invention relates to a MIG- or MAG-welding gun, comprising a hand-held grip for supporting, handling and aiming the welding gun during a welding process, the grip including a body member (). The grip further includes a grip member () pivotable relative to the body member () and lying alongside the body member over at least part of the same lengthwise extent as the body member. The grip member () has its free end pivotable to such a distance from the body member () that a hand grasping around the pivotable grip member () fits between the body member () and the pivotable grip member (), the body member () resting on top of the hand. When the pivotable grip member () has its free end is in its position pivoted into the engagement with the body member (), these two components constitute jointly a handle for the hand to grasp around. 1. A welding gun for MIG- or MAG-welding , comprising:a handle configured for supporting, handling and aiming the welding gun during a welding process, wherein the handle includes a body member and an elongate grip member that is pivotably coupled at a first end to the body member;wherein the elongate grip member defines a trough shape dimensioned to fit over the body member, and the trough shaped grip member is pivotable relative to the body member such that when the trough shaped grip member is pivoted alongside the body member the body member is at least partially accommodated within the trough, and the body member and trough shaped grip member in combination form a handle for using the welding gun; andthe trough shaped grip member is further configured so that when the trough shaped grip member is pivoted away from the body member, the trough shaped grip member forms an alternate handle for using the welding gun such that when a hand is grasping the pivotable trough shaped grip member, the body member rests on top of the hand;wherein the trough shaped grip member further includes an actuation trigger disposed adjacent the pivotable ...

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Номер записи: 96
03-04-2014 дата публикации

WELDER HAVING FEEDBACK CONTROL

Номер: US20140091066A1
Автор: Enyedy Edward A., Perry Douglas S., Wilder William Delvon
Принадлежит: LINCOLN GLOBAL, INC.

A method and apparatus for improving the flow control of a shielding gas in a welding unit is described which uses feedback from at least one of a mass flow controller, a pressure sensor and a valve position sensor to regulate shielding gas flow through a controller. 1. A welding system comprising:a shielding gas input;a shielding gas output coupled to a welding gun having a trigger; anda feedback control system for at least said shielding gas comprising:a mass flow sensor for measuring flow between said shielding gas input and said shielding gas output; anda valve for regulating flow between said shielding gas input and said shielding gas output.2. The welding system of wherein said valve further comprises a valve position sensor for communicating a valve position to a controller based upon valve position output from a valve position sensor.3. The welding system of whereinsaid controller interactively controls said valve position.4. The welding system of whereinsaid controller includes an alarm for indicating when feedback from said valve position is different than said valve position output.5. The welding system of whereinsaid feedback control system further comprises a pressure sensor for determining the pressure of the flow and communicating said pressure to said controller for adaptive preflow control.6. The welding system of whereinsaid feedback control system analyzes signals from at least two of said flow sensor, said pressure sensor, and said valve position sensor and adjusts said shielding gas output based on said at least two signals.7. The welding system of whereinsaid feedback control system analyzes signals from all of said flow sensor, said pressure sensor, and said valve position sensor and adjusts said shielding gas output based on said three signals.8. A method of providing a targeted shielding gas flow rate to a weld site claim 6 , said weld site comprising a gas input claim 6 , an electrical input claim 6 , a wire feeder claim 6 , a welding gun ...

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Номер записи: 97
03-04-2014 дата публикации

WELDING TORCH

Номер: US20140091068A1
Автор: Iijima Tooru, KOBAYASHI Kazuyuki, Masumoto Kazuo, Nishimura Yoshihito
Принадлежит:

In a multi-electrode welding torch, electrodes () are configured into a shape that has an arc-shaped curved surface area (R) in at least a portion of a cross-section thereof that is orthogonal to the longitudinal direction thereof. Collets () are each provided with a groove portion () in which an electrode () is fitted, and whose inner wall surfaces () come into contact in a plurality of locations with the curved surface area (R) when viewed in the longitudinal direction of the electrode (). 1. A welding torch comprising: a plurality of electrodes that are insulated from the welding torch by an insulating material: and collets that are in contact with the electrodes and conduct power to the electrodes , whereinthe electrodes are shaped such that they have an arc-shaped curved surface area in at least a portion of a cross-sectional shape thereof that is orthogonal to the longitudinal direction thereof, andeach collet is provided with a groove portion in which the electrode is fitted, and whose inner wall surface is in contact with a plurality of locations of the curved surface area when looking from the longitudinal direction of the electrode.2. The welding torch according to claim 1 , wherein a notch portion is provided in a distal end of the collet that faces towards a distal end side of the electrode.3. The welding torch according to claim 2 , wherein a notch portion is provided in a portion of the distal end of the collet that does not come into contact with the electrode.4. The welding torch according to claim 1 , whereinthere is provided a collet supporting component that is disposed such that its position is fixed relative to the electrode, andthe collet is supported by the collet supporting component such that the collet is able to be tilted relative to the electrode.5. The welding torch according to claim 1 , wherein the collet is supported by the collet supporting component such that the collet can be displaced in a direction that is orthogonal to the ...

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Номер записи: 98
03-04-2014 дата публикации

ASSEMBLY FOR ASSISTING THE REMOVAL FROM STORAGE AND TRANSFER OF WIRE

Номер: US20140091070A1
Автор: Burns Thomas W., Petters Todd W.
Принадлежит: ALCOTEC WIRE CORPORATION

An assembly for moving wire from one point to a second point distant from the first point. The assembly comprises a first unit comprising a wire straightener and a second unit that moves the wire through the assembly. 1. An assembly for moving wire from a wire storage unit to a welding gun , comprising: a hollow inlet guide tube for receiving said wire from said wire storage unit', 'a wire guide sheave mounted in the first unit such that a bottom edge of the wire guide sheave contacts a wire being processed through the unit;', 'a first roll straightener sheave rotatably mounted in the first unit beneath the wire guide sheave;', 'a center sheave rotatably mounted in the first unit forward of the first roll straightener sheave;', 'a second roll straightener sheave rotatably mounted forward of the center sheave;', 'said first roll straightener sheave and said second roll straightener sheave having linearly aligned axes of rotation;, 'a first unit comprising a wire straightener, said wire straightener havinga second unit comprising a wire drive, puller and driver, said wire drive puller and driver having a housing with first and second openings, each of said first and second openings having a guide bushing therein, one of the bushings having mounted therein an outlet guide tube, said outlet guide tube extending rearwardly from said housing;an idler drive roll and a driven drive roll rotatably mounted within the second unit housing, said idler roll and said drive roll contacting each other on a portion of their respective outer circumferential surfaces;the second unit housing mounted on a mounting block, the mounting block being removably attached to a mounting plate of the first unit by a fastener positioned in a slotted vertical opening in the mounting plate.2. The assembly of claim 1 , wherein the center sheave roller is vertically adjustable with respect to the axes of rotation of the first roll straightener sheave and the second roll straightener sheave.3. The ...

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Номер записи: 99
03-04-2014 дата публикации

CONTACT TIP ASSEMBLY FOR A WELDING TORCH

Номер: US20140091071A1
Автор: Dingeldein Matthew R.
Принадлежит: ILLINOIS TOOL WORKS INC.

A securement member for securing a contact tip to a welding torch assembly is provided. A channel extends axially therethrough and has an internal shoulder that extends into this channel. This internal shoulder abuts against a shoulder on the contact tip, capturing the contact tip between the shoulder and a seating surface on the diffuser and securing the contact tip in the torch assembly. The contact tip is securely seated without threading engagement, facilitating quick release and installation. The exemplary securement member couples to the diffuser such that the egress of fluid from the diffuser is blocked when used for gasless welding. This blocking allows a user to leave the diffuser secured to the welding torch when a gasless electrode is in use. 1. A securement mechanism for a contact tip of a welding torch assembly , comprising:a body comprising an electrically insulated material and having a channel extending therethrough and configured to receive a diffuser of a welding torch, and an internal shoulder extending into the channel and configured to engage a contact tip to seat the contact tip with respect to a contact tip seating surface of the welding torch.2. The securement mechanism of claim 1 , wherein the internal shoulder comprises a metallic member.3. The securement mechanism of claim 2 , wherein the metallic member comprises a plurality of ribs extending axially along an external surface of the metallic member.4. The securement mechanism of claim 1 , wherein the channel is defined by a first opening having a first width and a second opening having a second width less than the first width.5. The securement mechanism of in claim 1 , wherein the body is generally cylindrical.6. The securement mechanism of claim 1 , wherein the body includes a threaded portion for threaded engagement on the welding torch.7. The securement mechanism of claim 6 , wherein the threaded portion is configured for threaded engagement with a diffuser of the welding torch ...

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Номер записи: 100