Abstract: Welding torch assemblies including a torch body having a user interface module integrally formed therewith, a welding nozzle, and a torch lead assembly are provided. The user interface module may enable a user to control one or more parameters of a welding operation. The welding nozzle may be coupled to a first end of the torch body. The torch lead assembly may be coupled to a second end of the torch body opposite the first end and may include a weld power lead and a weld control lead.

Abstract: A self-adjusting liner assembly for a welding torch includes an elongated tubular main body having forward and rearward ends. An elongated tubular retainer including a shoulder is mountable in the main body. An elongated tubular piston including a shoulder cooperates with the retainer in a telescoping relationship in the main body. A resilient member is disposed in the main body and envelops a portion of the retainer and the piston. The resilient member urges the shoulders away from each other and the tubular piston toward the forward end of the main body.