Abstract: A double-sided tribrid welding technique and apparatus for root pass welding of narrow groove welds. The welding technique utilizes three welding devices. A welding apparatus on a backside of the weld joint may strike an arc on the backside of the weld joint; a welding apparatus on a narrow groove side of the weld may strike an arc within the narrow groove weld joint, while the remaining welding apparatus is a laser that can help establish a keyhole as a common pool of molten metal at the root without burning through the root. Once the arcs are struck substantially simultaneously and the laser is energized, the welding heads move simultaneously, the arc welders assisting in maintaining pre-heat temperature, while minimizing distortion and cracking. Adjusting arc weld parameters provides deformation on completion of the root pass so as to compensate for distortion due to metal shrinkage in subsequent passes.

Abstract: Systems and methods for producing dowel baskets from dowel side frames and transverse dowel rods. The dowel side frames are introduced at a top location of the production system, where there is initially introduced a first dowel rod and subsequently, with successive stepwise advancements, the remaining dowel rods are introduced. The dowel side frames with the dowel rods advance on guides that may rotate the dowel side frames relative to the axes of the longitudinal wires so as to impart a desired inclination angle ? relative to the rods. In following, with continuous stepwise advancements, the dowel rods are alternately welded, each to one of the opposed dowel side frames. Transverse wires are welded on the longitudinal wires to impart rigidity to the dowel basket. Subsequently, mass-produced dowel baskets may be stacked in groups.

Abstract: Systems and methods for determining that a consumable welding package has been, or may have been, replenished in a high production welding environment and that a tracked weight value of the consumable welding package should be reset. An operator of a welding system can be notified that a consumable welding package may have been replenished and, therefore, that the weight value of the consumable welding package may need to be reset in the welding system. Alternatively, the weight value of the consumable welding package in the welding system may be automatically reset when the welding system has determined that the consumable welding package has been replenished.

Abstract: A control method for an arc welding apparatus having a function of prohibiting detection of neck based on a change amount of welding voltage and an arc welding apparatus using the method. Thus, since neck determination can be carried out accurately by preventing wrong detection of neck, it is possible to reduce the occurrence of spatter.

Abstract: A weld wire electrode for use as a consumable in a gas-metal arc welding process comprises two or more strips wrapped around one another and drawn to a desired wire diameter.

Abstract: Welding wire feed systems include a wire feeder including a push motor and a welding torch assembly including a pull motor are provided. The push motor is adapted to establish a wire feed from a wire spool, and a first controller is adapted to receive a commanded speed level and to control operation of the push motor to operate at the commanded speed level. The pull motor is adapted to cooperate with the push motor to establish a desired wire feed rate from the wire spool to the welding torch assembly. A second controller is adapted to receive an operational speed level of the push motor from the first controller and to control operation of the pull motor to operate at the received operational speed of the push motor.

Abstract: 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.

Abstract: A first laser beam is radiated to a first radiation position of a welding object while intersecting a wire, and a second laser beam is radiated to a second radiation position that is spaced a predetermined distance from a target position of the wire. Arc welding is performed between the wire and the welding object while radiating the first laser beam and the second laser beam such that the first radiation position, the second radiation position, and the target position are disposed on a welding line of the welding object. In this way, it is possible to prevent the generation of spatter and perform welding at a high rate, without increasing the size of a molten pool.

Abstract: 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.

Abstract: A system and method for determining a wear condition of a welding consumable includes a welding torch having a consumable component and a wire delivery system configured to deliver wire to the welding torch during a welding process. The welding system also includes a power source configured to deliver power to the welding torch to perform the welding process. A controller is included that is configured to monitor at least one operational characteristic of the delivery of wire to the welding torch over a selected period, determine a wear condition of the consumable component from the at least one operational characteristic, and generate a signal indicating detection of the wear condition.

Abstract: 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.

Abstract: A sealing head for a strapping machine welds steel strapping material to itself in an end-to-end weld. The sealing head includes a body, a drive, an end grip at the inlet to the body, a cutter, a grip clamp and a loop grip downstream of the end grip. The loop grip is carried on a carriage that is movable in a direction along the strap path. A leading end of strap is secured by the end grip and a loop portion of the strap is gripped by the loop grip and severed by the cutter to form a loop end. The loop end is secured by the grip clamp. The loop grip carriage moves the loop end toward the leading end as current is passed though the loop end and the leading end to weld the ends to one another in an end-to-end weld.

Abstract: A wire feeder includes a wire feeder housing that may enclose one or more drive rollers rotatably connected with respect to the wire feeder housing for engaging welding wire. The one or more drive rollers may be adjustable and adapted to drive the welding wire to a welding gun connected to the wire feeder. A drive motor is incorporated for delivering power for rotating the one or more drive rollers. Friction reducing devices, such as bearings, may be utilized and positioned between one or more driver rollers and the housing, where the bearings are electrically non-conducting for preventing the discharge of electrical energy across the bearing surfaces.

Abstract: A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.

Abstract: A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.

Abstract: 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.

Abstract: A welding apparatus having a system to facilitate its assembly. The apparatus is assembled by affixing a pair of molded end panels to a molded base and each of the end panels has a specially constructed receptacle area that is adapted to receive an end of the base. Each end of the base has a pair of snaps that extend outwardly and which engage with a correspondingly located pair of ramps formed in the receptacle area of each of the end panels. Thus the assembly is easily carried out by simply inserting the base ends into the receptacle areas where the snaps ride up the ramps and engage the vertical walls on the inner side of those ramps to securely affix the end panels to the base. Preferably the snaps are U-shaped in configuration with the distal end of the snaps being the closed ends of the U-shaped snaps.

Abstract: A drawn arc welding assembly and method for simultaneously welding a stud to a first workpiece and a second workpiece that are affixed together and have an electrically insulating joining layer between the workpieces. A pair of leads attach to the first workpiece and the second workpiece, with electrically opposite diodes connected between the leads and a power supply. The power supply also provides power to a stud. During welding, two arcs are simultaneously maintained between the stud and first workpiece and between the stud and second workpiece. The power supply may be chopped AC from a dual inverter power supply.

Abstract: 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.

Abstract: 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.

Abstract: Embodiments of an enclosed welder that includes a recess disposed at a depth in a rear panel of the enclosure are provided. The recess may include at least one of an engine air filter, a blower housing, and a recoil start. The depth at which the recess is set back from the rear panel may be such that the engine air filter, the blower housing, and the recoil start each do not extend outward beyond the rear panel. A first air source may be configured to enter the enclosed welder via the air filter and combust fuel within an engine. A second air source may further be configured to enter the welder via the blower housing and cool the engine.

Abstract: A system and method for powering a welding-type device from a plurality of distinct outlet configurations is disclosed. The power cord system includes a power cord having a plurality of conductors extending therethrough. An end of the power cord is constructed to engage an individual adapter of a plurality of adapters. Each of the plurality of adapters has a prong configuration that is different than a prong configuration of the other adapters such that each of the plurality of adapters is constructed to electrically connect the power cord to a uniquely configured outlet. A welding-type device according to the present invention is quickly and efficiently adaptable to operate at a plurality of different input power signals.

Abstract: The invention relates to a contact tube (29) for a welding torch (10), having a longitudinal axis (31) along which a through-opening (30) for guiding a welding wire (13) from an inlet region (37) to an outlet region (35) and from an outlet opening (39) towards a workpiece (16) is provided, wherein at least one slot (34) is provided in the outlet region (35) for making contact with the welding wire (13). A contact tube (29) with improved contacting of the welding wire (13) is obtained by providing at least one further slot (36) in the inlet region (37) of the contact tube (29), wherein the slot (36) in the inlet region (37) is arranged in line with the slot (34) in the outlet region (35), and a web (38), which serves as a pivot point, is formed between the slot (34) in the outlet region (35) and the at least one slot (36) in the inlet region (37).

Abstract: A welding device for weld-assembly of first and second parts, defining therebetween a sealing surface, along a weld joint. The device includes: a supporting mechanism configured to move the device along the weld joint; at least one welding mechanism; and an automatic command and control mechanism. The welding mechanism is mounted on a single supporting element oriented substantially parallel to the sealing surface. A first motorized actuator secured to the supporting mechanism includes a first projection cooperating with an open housing in a first end face of the supporting element, and a second motorized actuator secured to the supporting mechanism includes a second projection cooperating with an open housing in a second end face of the supporting element. The first and second projections are movable in a plane substantially perpendicular to the sealing surface and generate controlled movement of the supporting element of the welding mechanism.

Abstract: A cable management system for a welding-type system includes a support column extending in a first direction from a first end supported by a welding-type device to a second end arranged above the welding-type device. The cable management system also includes a cable support arranged on the second end of the support column that extends in a second direction substantially transverse to the first direction. Accordingly, a portion of the cable support extends away from the welding-type device to allow a cable supported thereon to extend below the cable support and proximate to the welding-type device.

Abstract: The invention relates generally to welding and, more specifically, to electrodes 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 core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight. Furthermore, the carbon source is selected from the group: carbon black, lamp black, carbon nanotubes, and diamond.

Abstract: This disclosure provides a joining area and method between copper and stainless steel or titanium, as well as the permanent cathode obtained, where said joining area is made of a first zone of a copper-nickel (Cu—Ni) alloy, an intermediate zone with a mostly nickel alloy or pure nickel and a second zone made of a stainless steel-nickel alloy, which is the result of the participating materials being cast in an arc welding process, for example TIG, MIG or manual arc using electrodes of nickel as welding contributor between said materials and their space arrangement, that is to say, leaving a separation between the materials when performing the welding process, thus ensuring as follows: a) greater tensile strength, b) a substantial improvement of corrosion resistance of the joint welding, and c) improvement of conductibility, which can be improved still further by modifying the straight design of the conducting bar by providing it with the “horn”-type shape.

Abstract: A welding gun precludes moisture from penetrating inside of a motor housing due by preventing development of negative pressure inside the motor housing. The welding gun includes a feed screw mechanism that is coupled to a servo motor and has a hollow rod that reciprocally moves in a predetermined direction by way of torque applied by the servo motor, and a moveable electrode tip that is connected to a leading end portion of the hollow rod and opens and closes relative to a fixed electrode tip according to the reciprocal movement of the hollow rod. The servo motor has a motor housing in which a motor housing hollow part accommodating a portion of the hollow rod to be reciprocally moveable is formed. A vent that ventilates the motor housing hollow part with ambient air is formed in the motor housing.

Abstract: A machining fixture for semi-automatically reconditioning an articulated connector is provided. The fixture comprises a housing having at least two side walls, a top plate having a first opening connecting the side walls, and a bottom plate connecting the side walls, the side walls, top plate, and bottom plate defining an interior space. The fixture also includes a clamping mechanism attached to at least one of the side walls, the clamping mechanism comprising a curved hook portion, the curved hook portion being laterally adjustable.

Abstract: A container for packing and shipping stud welding ferrule aligned along a spindle. The container comprises a body having a top, a bottom, opposing side walls and opposing end walls defining a storage space therein. The container further comprises a spindle retainer operatively connected to the body. The spindle retainer has a transverse portion and a longitudinal portion connected to the transverse portion. The transverse portion extends from one of the end walls and toward and into the storage space, while the longitudinal portion extends from the transverse portion and toward the bottom of the body. The transverse portion and the longitudinal portion are sized and shaped to accept and to retain ends of the spindle to contain the spindle within the body.

Abstract: The invention relates to a twin wire welding apparatus (1) including a first contact tube (2) for guiding a first consumable electrode (4) toward a weld puddle (6) and transferring welding current to the first consumable electrode (4), a second contact tube (10) for guiding a second consumable electrode (12) toward said weld puddle (6) and transferring welding current to the second consumable electrode (12), and a single power source (16) connected to said first and second contact tubes (2,10) for providing the same potential to said two consumable electrodes (4,12), and to a method for operating such an apparatus.

Abstract: An apparatus and method are provided for manufacturing an orthopedic prosthesis by resistance welding a porous metal layer of the orthopedic prosthesis onto an underlying metal substrate of the orthopedic prosthesis. The resistance welding process involves directing an electrical current through the porous layer and the substrate, which dissipates as heat to cause softening and/or melting of the materials, especially along the interface between the porous layer and the substrate. The softened and/or melted materials undergo metallurgical bonding at points of contact between the porous layer and the substrate to fixedly secure the porous layer onto the substrate.

Abstract: A welding carriage has a frame that is adjustable in width and height and is guided by the sides of a workpiece. First and second wheel assemblies support the frame upon the workpiece, the first and second wheel assemblies forcibly engaging the sides of the workpiece for guiding the frame along a path substantially parallel thereto. The frame comprises two opposing lateral sides interconnected by a linkage therebetween. The linkage can be actuated to adjust a coarse width of the frame, dimensional variations being handles by biased guide wheels of the second wheel assembly. Each of the opposing lateral sides further has vertically adjustable leg posts for adjusting a vertical height of the frame.

Abstract: A method for balancing an electrode arm (101) of a welding device (100) is provided. The welding device (100) includes a first electrode arm (101) and a second electrode arm (102) movable with respect to one another and coupled to a reference arm (30). The welding device (100) also includes a compensation actuator (106) coupled to the first electrode arm (101) and to the reference arm (30) to balance a weight of the first electrode arm (101) and including first and second fluid chambers. The method comprises a step of adjusting a differential pressure between the first and second fluid chambers of the compensation actuator (106). The method further comprises a step of determining a differential balance pressure required to balance the weight of the first electrode arm (101) when the first electrode arm (101) moves by more than a threshold amount.

Abstract: The invention relates to a method for welding coated sheet metal (3), which comprises at least one laser (13) and at least one shielded arc unit (5) and a rod feeding device (11) for a welding rod (12). The aim of the invention is to provide a method or a device of the aforementioned kind which allows fo˜ reducing or completely avoiding inclusions such as are e.g. caused by the evaporation of the coating of the metal sheet (3). For this purpose, a clamping device (6) is used for positioning the coated metal sheet (3) without substantial gaps between the individual sheets. A material having a zinc and/or carbon and/or aluminum content is used as the weld metal or welding rod (12).

Abstract: The invention relates to a welding robot for resistance welding, which exhibits a welding tongs (21), a welding current generator (1) connected to the welding electrodes (24, 25) of the welding tongs (21), for supplying the welding electrodes (24, 25) with electric energy during the resistance welding, and an industrial robot. The industrial robot comprises a robot arm (2) and a robot control device (9) for moving the robot arm (2). The welding tongs (21) is connected to the robot arm (2) and the robot control device (9) is connected to the welding current generator (1) and a tongs drive (26, 27) of the welding tongs (21).

Abstract: A welding machine that includes a machine frame having an opening permitting access to an interchangeable tooling module installed on the machine. The welding machine includes one or more light curtains covering the opening to disable operation of one or more welding stations on the tooling module if the light curtain is breached by an operator, robot, or other object. The welding machine includes a selector arm attached to the machine frame at a location between a first end and a second end of the opening. The selector arm can be moved into and out of position at the opening to selectively define either a single light curtain across the opening or a pair of adjacent light curtains that permit separate operation and access to separate welding stations behind each of the two light curtains.

Abstract: A device for applying electric discharge to an optical fiber is comprised of a pair of electrodes having the optical fiber interposed between the electrodes and being opposed to each other; a pedestal configured to support the electrodes; a member configured to securely press the electrodes onto the pedestal; and a heat radiation fin provided on the member.

Abstract: A flexible guide device for a welding wire, formed by a plurality of individual elements which are connected to each other in an articulated manner, characterized in that the individual elements are adapted to swivel in relation to each other in any direction.

Abstract: A retaining head for a MIG welding device includes a contact tip mounting end, an opposite retaining head mounting end, and a throughbore extending from one of the ends to the other end. A deflector is disposed along the throughbore and is adjustable for imparting a bend in welding wire passing through the throughbore. The deflector provides a straight wire contour for the welding wire that is fed out of the welding torch, while maintaining sufficient contact force between the welding wire and the contact tip. The deflector also reduces the effect of wire twist on the contact point between the welding wire and the contact tip.

Abstract: Portable weld cooling systems include a plurality of weld cooling instruments operable to combine to provide cool air to a weld area created by a weld fusion machine, and a portable cabinet comprising a transportation section and a storage section, the transportation section operable to facilitate the movement of the portable cabinet and the storage section being configured to store the plurality of weld cooling instruments when the portable cabinet is moved, wherein one or more of the plurality of weld cooling instruments may be removed from the storage section when combined to provide cool air.

Abstract: A device for applying electric discharge on an optical fiber by electrodes is comprised of a first driving mechanism for controllably driving the electrodes in a first direction perpendicular to an axial direction of the optical fiber; and a second driving mechanism for controllably and synchronously driving the electrodes in a second direction perpendicular to the axial direction of the optical fiber but not identical to the first direction.

Abstract: A turntable assembly for performing welding or other operations in a pivotably-mounted J-lay tower is disclosed. The assembly includes an annular turntable supported by a base frame to turn about a pipe string in use and a tilt-compensating mechanism acting on the base frame to level the turntable as the tower pivots in use. The tilt-compensating mechanism includes at least one support that is driveable up and down with respect to the tower. In the embodiment disclosed, the support is a carriage movable along an upright track that pivots with the tower.

Abstract: A welding power supply includes a controller that automatically monitors the presence or absence of one or more modules connected to or installed into the welding power supply. The controller automatically turns on or off the power supply functions related to which optional modules are present. The controller populates various end-user interface menus based on which optional modules are installed. The controller uses software and/or hardware to make the determination. The optional module(s) themselves include circuitry which allows the controller to recognize when the optional module has been installed and what functions the installed optional module is capable of performing. The circuitry of the optional module(s) allows the optional module(s) to communicate with the controller. In this way, the end-user will not have the options of selecting a process on the user interface menus that is not available because the required equipment has not been installed.

Abstract: A computer obtains a first image including a first portion of a first edge and a first portion of a second edge, wherein distance between the first portion of the first edge and the first portion of the second edge forms a first width of a seam between the first edge and the second edge. The computer obtains a second image including a second portion of the first edge and a second portion of the second edge, wherein distance between the second portion of the first edge and the second portion of the second edge forms a second width of the seam between the first edge and the second edge. The computer determines a parameter for a welding torch to weld a joint for joining the first edge and the second edge along the seam based at least in part on the first image and the second image.

Abstract: A welding cell unit includes a frame and a cell table that supports a robotic welding system, the cell table is attached to the frame. A table top is pivotally secured to the cell table, the table top is rotated outwardly from a non-extended position adjacent a side of the cell table into an extended position coextensive with a table top plane. A support mechanism structurally supports the table top when in an extended position. A plurality of panels surround the cell table, the plurality of panels are configured to extend outwardly from the cell table to enclose the table top when in an extended position.

Abstract: A mobile welding system has a mobile base for traversing a surface, proximate to a region to be welded. The mobile welding system has a lift, coupled to the mobile base and to a platform for moving the platform vertically proximate to the region. The lift is disposed between the platform and the mobile base. The mobile welding system has a robotic arm coupled to the platform. The mobile welding system has a welding torch, disposed on a first end of the robotic arm, for welding the region. The mobile welding system has a controller configured to cause the welding torch to move proximate to the region by causing at least one of the mobile base, the lift, and the robotic arm to move in at least one direction.

Abstract: A welding control unit has a common power section for detecting contact of a welding material and for welding. A material contact detector for detecting contact of the welding material and a workpiece, and a power controller are built in the welding control unit. This stabilizes a bead shape in starting welding. The number of components can also be reduced, resulting in more inexpensive equipment. In addition, only a space for installing the welding control unit is needed without any additional space.

Abstract: A metal component for one or more of a fitting, a piece of furniture and a household appliance. The metal component includes a coating, at least in sections, the coating including one of a hardness-containing composite material and a ceramic-metal composite material.

Abstract: A welder includes a housing enclosing one or more welding circuits communicated with power output studs for establishing a welding arc. A generally rigid bracket may be included that is affixed to an exterior of the housing, which may include first and second spaced apart support arms extending from a bracket, where the first support arm includes a first supporting surface facing a first direction, and where the second support arm includes a second supporting surface facing a second opposite direction for supporting the associated welding gun in a cantilevered configuration. A cable cradle is also included that extends from a second, distal end of the bracket.