Arc welding equipment for joining the objects at high speed and for reducing the strain of the objects after being joined is provided. The nozzle housing an electrode forming arc plasma is formed from a gas supply part and a gas suction part. The gas supply part has gas supply holes supplying gas outward in a radial direction of the arc plasma. The gas suction part suctions the gas supplied form the gas supply part. A pair of the gas supply holes, which are disposed so that the electrode is disposed therebetween, supply the gas of a first pressure to a position away from the electrode by a first distance. A pair of the gas supply holes, which are disposed so that the electrode is disposed therebetween other than the pair of the gas supply holes, supply the gas of a second pressure to a position away from the electrode by a second distance. The second distance is longer than the first distance. The gas of the second pressure is lower than that of the first pressure. Thereby, the arc plasma is compressed in a direction connecting the gas supply holes, and the arc plasma becomes long in a direction connecting the gas supply holes.

Apparatuses, systems, and/or methods for welding systems that provide independent control of a contact tip of a welding torch are disclosed. The welding system can include, for example, a welding torch that includes, for example, a contact tip and a pivot in which the contact tip is coupled to the pivot and is configured to provide wire that is fed through the welding torch during a welding operation. The contact tip and the pivot are configured to independently move the contact tip of the welding torch around the pivot during the welding operation.

A shield for a plasma arc torch is configured to protect consumable components of the plasma arc torch from splattering molten metal. The shield includes a generally conical unitary body defining (i) an interior surface to form a gas flow path with an outer surface of an adjacent nozzle of the plasma arc torch, and (ii) an exterior surface. The body includes (i) a distal first portion defining an exit orifice; and (ii) a proximal second portion formed of a flange sharing a common surface with the distal first portion. The shield also includes a seal assembly disposed on the common surface to retain the liquid coolant flow along the proximal second portion.

An arc welding torch having a variable electrode receiving aperture including a number of discrete wedges guided within a conical interior surface of a housing to enable the use of electrodes of various diameters without changing components of the torch. An adjusting collar engages the wedges and forms an adjustable opening for an electrode to be inserted therein. Rotation of a tailpiece of the torch handle adjusts the position of the wedges and secures the electrode in position.

A handling apparatus for performing a TIG weld comprises a main body for holding a filler rod; a feeding device attached to the main body and configured to advance the filler rod during welding; a control unit configured to act on the feeding device and to regulate the speed of the filler rod.

A torch assembly for cutting or spraying applications. The torch assembly includes a torch connector that connects to at least one cable that communicates with a power supply. The torch assembly includes a trigger mounted on the torch assembly to start and stop torch operations. The trigger electrically communicates with the power supply via the at least one cable. The torch assembly also includes a remote switch mounted on the torch assembly to allow an operator to remotely adjust an output of the power supply to a desired output level. The remote switch is electrically coupled to the power supply via the at least one cable.

A method for manufacturing an additively-manufactured object, in which a plurality of weld beads obtained by melting and solidifying a filler metal are deposited on a base portion to build a built-up object, includes: a support bead forming step of forming a support bead on the base portion; and a depositing step of depositing a weld bead on the support bead. When the support bead is formed to be inclined from a vertical direction in the support bead forming step, a ratio H/W of a height H to a width W of the support bead is set to 0.35 or more.

A welding torch that comprises: a main body that is formed as a hollow pipe body, and that has a first inclined surface formed inside the pipe body; an electrode bar cap that has a collet chuck on the front side of a joint that is assembled on one side of the pipe body in a screw-coupling manner, that moves the collet chuck by tightening or loosening the joint; a head that has a socket that is arranged on a side facing the pipe body and that sprays supplied gas in all directions, and that is formed of a nozzle that is assembled on an external surface of the socket; and a connector that guides a gas supply into the pipe body.

A semi-automatic torch trigger for a rotating power connector in use in a welding torch cables is provided. In some examples, a trigger mechanism is configured to transmit control signals through a transmission channel that is not subject to mechanical wear from rotational movement of the rotating power connector, providing reliable communication between a welding torch trigger and a welding power supply without breaking electrical contact or putting unnecessary strain on the welding cable, even as the welding torch rotates relative to the welding torch cable.

A torch for performing TIG welding is disclosed. The torch includes an electrode for a TIG/GTAW welding operation with an inert gas and an active gas. In accordance with at least one embodiment of the present invention, the torch includes a torch body having a first fluid channel and a second fluid channel, an electrode assembly disposed in the torch body, a nozzle concentric with the electrode and a shield cap concentric with the nozzle. An angle between a longitudinal axis of the electrode assembly and an outer surface of at least one of the electrode holder and the electrode is about nine degrees.