Abstract: A welding system includes a welding torch that welds a workpiece by using a wire, a suction device that sucks shielding gas, and a sucked shielding gas supply path for allowing the sucked shielding gas to flow, wherein the welding torch includes a contact chip that guides the wire, a shielding gas supply nozzle that supplies the shielding gas to a weld zone, and a suction nozzle that surrounds a periphery of the wire protruding from the contact chip, and is opened toward a tip of the wire to suck the shielding gas.

Abstract: A welding torch for arc welding in a shielding gas atmosphere, includes: a contact tip for feeding a welding wire; a suction nozzle surrounding the welding wire, and sucking a gas from a space between the suction nozzle and the welding wire; and a shielding gas supply nozzle provided on the outer periphery of the suction nozzle, and supplying the shielding gas toward a welded portion from a space between the shielding gas supply nozzle and the suction nozzle. The welding torch satisfies “7?Ltk?17 and 0?Lts?18”, where Lts [mm] is a distance between the tip of the contact tip and the tip of the shielding gas supply nozzle, and Ltk [mm] is a distance between the tip of the contact tip and the tip of the suction nozzle.

Abstract: A welding system having a welding power supply coupled to a fume extractor is provided. The fume extractor may be coupled to control circuitry configured to operate the welding power supply. The control circuitry may be configured to begin, terminate or modify the operation of the fume extractor prior to the establishment of a welding arc, after the termination of the welding arc, or both. The control circuitry may be further configured to modify the operation of the fume extractor based upon a type of welding process used.

Abstract: The invention relates to a method and a device (30) for monitoring the inert gas (5) during a welding process performed using a welding torch (7), wherein at least one measurement variable (Pi), which is dependent on the type of inert gas (5), is measured by means of at least one sensor (Si). According to the invention, at least two measurement variables (Pi) of the inert gas (5) are measured and the measured values (Mi) of the at least two measurement variables (Pi) of the inert gas (5) are compared with several stored values (Mi?), which are associated with inert gas types (Gi), of the at least two measurement variables (Pi), and the inert gas type (Gi), for which the assigned values (Mi?) of the at least two measurement variables (Pi) are closest to the measured values (Mi) of the at least two measurement variables (Pi) of the inert gas (5), is displayed.

Abstract: A gas delivery system delivers a shielding gas from a source through one or more hoses to a torch having a nozzle during welding of a workpiece. A shielding gas controller includes an inlet, an outlet, and at least one valve between the inlet and the outlet. The valve operates in response to a predetermined minimum shielding gas flow set point. The shielding gas controller operates the valve before or after a weld to change the flow of the shielding gas according to the predetermined minimum shielding gas flow set point. A method of welding includes predetermining a flow rate of a shielding gas, predetermining another flow rate of the gas, dispensing the gas at the first flow rate proximate a first weld pool during welding, and dispensing the shielding gas at the second flow rate, different from the first flow rate, during welding of another weld on the workpiece.

Abstract: A nozzle assembly for a welding torch and a welding torch including said nozzle assembly is provided. The nozzle assembly generally comprises a nozzle body having an internal bore with a plurality of detents disposed within a portion of the internal bore and an insert assembly having a proximal exterior surface with a plurality of sealing members. The insert assembly is adapted to be secured within the internal bore of the nozzle body by the plurality of sealing members progressively engaging the plurality of detents.

Abstract: Welding torch system for use in welding or cutting operations during which fume is created. The welding torch system has a welding torch comprising a contact tip holder and a coaxial nozzle comprising an inner shield gas conduit having a shield gas outlet for supplying a shield gas. The inner shield gas conduit surrounds the contact tip holder. An outer shell at least partly surrounds said inner shield gas conduit. The welding torch system further comprises a shield gas generator and supply unit for supplying shield gas through the shield gas outlet and a fume extracting assembly for extracting fume and ambient air. The welding torch system is arranged for—during operation—supplying shield gas through the shield gas outlet at a velocity between about 1.5 m/s and 10 m/s. By operating the fume extracting assembly to generate a flow of between 10 and 100 m3/h, preferably a flow of about 55 m3/h a reduction in the area of 90%-95% of hazardous fumes can then be realized.

Abstract: A welding system for welding small precious metal firing tips to spark plug electrodes, such as ground and/or center electrodes. According to one embodiment, the welding system includes a firing tip storage assembly and a firing tip welding assembly, where the firing tip storage assembly uses pressurized gas introduced at the bottom of a part container to float or lift the firing tips so that the firing tip welding assembly can more easily acquire them with a vacuum-driven nozzle that also doubles as a welding electrode. The firing tip welding assembly is mounted to a robotic apparatus that can index or move the firing tip welding assembly between the firing tip storage assembly, a welding station and/or any other suitable positions.

Abstract: A mock welding unicoupon for a virtual welding system includes a first exterior surface and a second exterior surface perpendicular to the first exterior surface. The first exterior surface and the second exterior surface together provide a plurality of grooves configured for simulation of a plurality of different types groove welds on the mock welding unicoupon. A curved exterior surface is configured for simulation of a pipe fillet weld on the mock welding unicoupon. A magnet source is configured to generate a magnetic field around the mock welding unicoupon for tracking movements of a mock welding tool with respect to the mock welding unicoupon.

Abstract: The present invention relates to a welding booth that has a small foot print and can be joined to other booths for maximization of floor space use.

Abstract: The invention relates to a single- or multi-wire welding torch (6), more specifically to a laser-hybrid single- or multi-wire welding head provided with the welding torch (6) which can be connected to a welding device via a hose pack and consists of several parts such as a torch handle, a tubular welding torch housing, a contact housing, a contact tube for each welding wire (21a, 21b), a gas nozzle (2) etc., wherein an internal insert (28) for receiving the contact tube(s) (20a, 20b) and the gas nozzle (2) is mounted in an end area of the welding torch housing. A fixing element (30) made at least partially of a flexible material is placed on the internal insert (28) or on the housing (2) for producing as required an, in particular, gas-tight connection between said internal insert (28) and the gas nozzle (2) pushed thereon. This connection can be established by the spatial extension of the fixing element.

Abstract: 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.

Abstract: A manufacturing method of laser diode unit of the present invention includes steps: placing a laser diode on top of a solder member formed on a mounting surface of a submount, applying a pressing load to the laser diode and pressing the laser diode against the solder member, next, melting the solder member by heating the solder member at a temperature higher than a melting point of the solder member while the pressing load is being applied, and thereafter, bonding the laser diode to the submount by cooling and solidifying the solder member, thereafter, removing the pressing load, and softening the solidified solder member by heating the solder member at a temperature lower than the melting point of the solder member after the pressing load has been removed, and thereafter cooling and re-solidifying the solder member.

Abstract: A heat pipe cooling system adapted for exemplary use with a gas metal arc welding torch, includes a container enclosing a capillary structure and quantity of working fluid, and functions to accelerate the dissipation of heat energy from a heated zone generated by the torch through the vaporization and condensation of the fluid and the capillary action of the structure.

Abstract: The subject embodiments relate to a wire feed system that is used with a welder. The wire feed system includes a pair of counter-rotating discs disposed along a common longitudinal axis that are spaced apart a first width. A first disc rotates in a first direction and a second disc rotates in a second direction which is opposite the first direction. A drive roll is disposed between the first disc and the second disc within the first width. An engaging member moves the drive roll adjacent to either the first disc or the second disc based on a predetermined condition to advance or retract wire relative to a workpiece within the welding system.

Abstract: A component extraction system is designed to remove smoke and airborne components, such as particulate, from a metal working or other application. The system may be compatible with a cart-type base unit or may be incorporated into a fixed or semi-fixed installation that uses a nozzle disposed on a carriage to remove workspace air (e.g., containing smoke and airborne components) away from the metal working application. The carriage may travel along a guide rail disposed adjacent to the metal working application in order to place the nozzle near the source of the metal working components. Further, the carriage may include a positioning system, utilizing sensors, to automatically adjust the location of the nozzle proximate the airborne component source.

Abstract: 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.

Abstract: An adjustable vacuum and support system for evacuating particulate matter, smoke, excess gasses, and molten metal from a work area during TIG 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 arrangement 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 of the vacuum nozzle can be a base bevel surface at the tip of the nozzle. An opposed suction bevel surface can have a nozzle aperture interposed therealong.

Abstract: A submerged arc welding system. In one embodiment, the submerged arc welding system includes a robot, a flux supply distal from the robot, and at least one wire supply distal from the robot. The system also includes a welding torch connected to the robot, a wire path connecting the wire supply to the welding torch, and a flux path connecting the flux supply to the welding torch. A flux delivery system is configured to move flux from the flux supply to the welding torch. At least one vent is disposed on the flux path adjacent the welding torch, to evacuate air from the flux path.

Abstract: 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.

Abstract: The present invention relates to a welding booth that has a small foot print and can be joined to other booths for maximization of floor space use.

Abstract: The fume extraction system (10) includes a fume hood (12) located at the end of an articulated exhaust duct robotic arm (14) Three pairs of photoelectric sensors (34, 36, 38, 40, 42 and 44) are provided on the fume hood (12) to sense the presence of an electric welding arc (64) The system (10) includes a control unit (50) that generates command signals for the arm (14) based on signals received from the sensors so as to automatically position the hood (12) over the arc (64) and maintain a predetermined height distance between them A method of automatically positioning a fume hood is also disclosed The system and the method can provide a more dependable operation than ever before without the need of a complex construction.

Abstract: A method for extracting fumes from a robotic welder is disclosed. The method includes controlling a robotic welder to produce a weld and extracting fumes produced by the robotic welder via a vacuum source. The method also includes selectively varying the vacuum source as a function of the position of the robotic welder.

Abstract: In accordance with a particular embodiment of the present disclosure, an apparatus for shielding welding fumes includes a device configured to engage a welding gun. The device is configured to emit a flow of air through the one or more orifices. The flow of air is operable to divert welding fumes away from a welder.

Abstract: A torch for use in welding operations during which smoke and/or fumes are created has a nozzle and a handle connected to a conduit extending between the handle and the nozzle. A fume extraction duct extends from the nozzle and through the handle. An annular member surrounds the axial end of the nozzle and has a plurality of openings oriented such that fumes and ambient air are extracted in a direction substantially parallel to the longitudinal axis of the nozzle. A switch is provided to control fume extraction between a full flow rate and a partial flow rate.

Abstract: A fume-dispersing device and welder combination for removing unwanted gases from a welding work area comprises a welder including a grip portion having an axis, and a welding tip extending in an axial direction from said grip portion and providing a distal welding end that affects a welding operation; and a fume-dispersing device including a fume dispersion tube recessed axially from said distal end of said welding tip and providing an open end. A method is provided employing such a device.

Abstract: A local environmental cell for a welding spray gun includes an annular ring having a top surface and a bottom surface, wherein the annular ring is adapted for attachment to an outer perimeter of the spray gun; and a plurality of fluid passageways radially disposed about the annular ring having a plurality of openings in the bottom surface of the ring in fluid communication with a vacuum source for providing a vacuum thereto. The use of the local environmental cell permits deposition of local bond coats as well as minimizes the number of steps associated with welding repair processes. For example, the use of the local environmental cell permits welding and formation of a low oxide bond coat during the welding process, thereby eliminating the need for placing the substrate subsequent to a welding process in a separate spray cell to deposit the bond coating.

Abstract: The present invention relates to a device for performing welding operations, comprising: a core member in which can be guided a welding wire connectable to a voltage source; an extraction member arranged on the outside of the core member for extracting substances inconvenient to the welder; a gas supply member arranged on the outside of the extraction member for supplying gas. The invention also relates to an assembly for welding a weldment, comprising: a device as claimed in any of the claims 1-9, welding wire supply means for supplying welding wire; gas supply means for supplying gas via the gas supply member; a voltage source for applying electrical voltage between the welding wire and the weldment; pumping means for exhausting substances inconvenient to the welder via the extraction member.

Abstract: An arrangement for removing gas, smoke, solid particles and the like in connection with welding and/or cutting consisting of two parts which can be easily latched together, namely an outer housing and an inner part. The outer housing comprises a unit for the suction of air-borne pollutants, and also a duct arranged with small opening for cooling fluid to escape for cooling both the outer housing and the inner part. A pyramidal shaped structure within the housing for assisting the reduction of the speed and energy of the spark particles formed during welding or cutting.