Disclosed is a welding torch. The welding torch comprising a torch head, a cup, a handle and a connector removably. Further, the torch head comprising a first tube, a second tube and an extension member. Further, the first tube and the second tube joined together in parallel along the length of the first tube and the second tube. Further, the extension member coupled to a rear end of the second tube. Further, the cup removably coupled to a front end of the first tube. Further, the handle removably coupled to the rear end of the extension member. Further, the connector removably enclosed within the handle. Further, the connector connects to a gas supply hose, wherein the welding torch is generally parallel to the gas supply hose.

A welding method includes feeding a welding electrode axially from a welding torch, moving the welding electrode radially in a desired pattern with respect to a central axis of the welding torch by a motion control assembly within the welding torch, transmitting from control circuitry a signal corresponding to a position of the welding electrode relative to a weld joint or weld pool, advancing the welding torch or a workpiece to establish a weld, and transferring material from the welding electrode to a first location in an area of the weld pool. The welding electrode moves radially while feeding the welding electrode from the welding torch, the material from the welding electrode is transferred to the first location during a first cycle of the desired pattern, and the first location is controlled based at least in part on the signal.

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.

The present disclosure is directed to a system and method for obtaining a desirable shielding gas flow in a welding device. The system includes a user interface configured for a user to input the size of the nozzle, a processor that is configured to calculate a desirable flow rate of shielding gas based at least in part on the input nozzle size, and a flow regulator that is configured to control the flow of the shielding gas in order to obtain the desirable flow rate.

Some examples of the present disclosure relate to a cover cap for a welding torch. The cover cap is attached to a housing of the welding torch and rotatable between a closed position, where the cover cap covers an access port of the welding torch, and an open position, where the cover cap does not cover the access port. The welding torch may have welding components within the handle that may be accessed through the access port when the cover cap is in the open position. A cap holder may be used to hold the cover cap in the open position.

Systems and apparatus are disclosed relating to improved fluid supply systems. In some examples, the improved fluid supply systems use an electrically controllable proportional valve and a surge prevention process to prevent a surge of pressurized fluid at the end of a welding-type operation. In particular, the surge prevention process may coordinate closure of the proportional valve and an on/off solenoid valve so that pressure in the fluid flow path can equalize to an ambient pressure after a welding operation (and/or a post flow operation) has ended. This coordination ensures that there is no pressure buildup and/or associated surge of fluid when the on/off solenoid valve is next opened (e.g., at the start of the next welding operation).

A welding or metal additive manufacturing torch includes a nozzle and a shielding gas diffuser located within the nozzle. The shielding gas diffuser has a plurality of shielding gas discharge holes spaced annularly around the shielding gas diffuser. A contact tip extends from the shielding gas diffuser distal of the shielding gas discharge holes. An annular screen extends radially between the nozzle and one or both of the contact tip and the shielding gas diffuser and is located distal of the shielding gas discharge holes. The annular screen is electrically insulated from at least one of the shielding gas diffuser and the nozzle.

Methods and apparatus are disclosed relating to mixing fluids in welding-type equipment. In some examples, a welding-type power supply (and/or wire feeder) may include multiple fluid paths through which to provide fluid from multiple fluid reservoirs to multiple welding-type tools. The power supply may be configured to automatically control fluid flow rates through the fluid paths via proportional valves. Further, the welding-type power supply may be configured to allow and/or prohibit mixing of fluids from different flow paths via control of various valves.

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.

The method can include inserting a first portion of a backing device into a fluid aperture of a first conduit component, inserting a second portion of the backing device into a fluid aperture of a second conduit component, and bringing the second conduit component adjacent the first component over the backing device, fusion welding the first conduit component to the second conduit over the backing device, and removing the backing device by circulating a fluid inside the welded conduit components. The backing device can be made of a soluble material.