A contact tip assembly having an electric contact unit containing a contact tip with an electric energy source, where the electric contact unit is positioned at a distance away from the outlet opening of a guide.

A contact tip assembly having an electric contact unit containing a contact tip with an electric energy source, where the electric contact unit is positioned at a distance away from the outlet opening of a guide.

A device is provided with a first die, a second die and a pressing machine. The second die is provided with a plastic processing hole where a core metal is disposed on a hole center line. On the inner peripheral surface of the plastic processing hole, three projecting portions are provided at regular intervals in the circumferential direction of the hole center line. By the approach of the first and second dies to each other, the core metal is inserted into a guide hole of a contact tip, and the projecting portions plastically deform the head end side of the contact tip by pressing it until it is in contact with the core metal.

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 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 welding torch 10 is provided for use in a Gas Metal Arc Welding (GMAW) process. The welding torch 10 includes a torch body 12, a welding tip 16 extending from the torch body 12, and a detachable nozzle 22 which substantially surrounds the welding tip 16 in use to direct gas around the welding tip 16 and onto a workpiece, the nozzle 22 having a front end which faces the workpiece in use and a rear end which attaches to the torch body 12 in use, in which a ring 24 is provided, the ring 24 being substantially axially fixed to the nozzle 22 at the rear end of the nozzle 22, and the ring 24 being rotatable with respect to the nozzle 22, the ring 24 having a screw thread and the torch body having a corresponding screw thread 26, for fixing the nozzle 22 to the torch body 12.

An example wire liner retention apparatus includes: a body comprising a bore extending longitudinally through the body, the bore configured to permit passage of a welding wire liner through the bore; a clamp configured to apply a compressive force to the welding wire liner in a radial direction within the bore to limit movement of the welding wire liner with respect to the body; and a compression adjustment mechanism configured to adjust the compressive force applied by the clamp.

An example wire liner retention apparatus includes: a body comprising a bore extending longitudinally through the body, the bore configured to permit passage of a welding wire liner through the bore; a clamp configured to apply a compressive force to the welding wire liner in a radial direction within the bore to limit movement of the welding wire liner with respect to the body; and a compression adjustment mechanism configured to adjust the compressive force applied by the clamp.

Apparatus, systems, and/or methods for providing welding systems or portions of welding systems that provide a tip-retention device that is configured to direct gas radially towards a contact tip.

Apparatus, systems, and/or methods for providing welding systems or portions of welding systems that provide a tip-retention device that is configured to direct gas radially towards a contact tip.