That part of a gas metal arc welding gun or flux cored arc welding gun that transfers the welding current to the welding wire immediately before the wire enters the arc.
Welding Tech
The resistance in ohms between the contacts of a relay, switch, or other device when the contacts are touching each other.
Torch parts that are eroded or otherwise worn during normal cutting or gouging operations, such as, electrodes, nozzles, shields, caps and swirl rings.
A plasma arc column that is shaped by the constricting orifice in the nozzle of the plasma arc torch or plasma spraying gun.
An arc welding power source with a volt-ampere output characteristic that produces a large welding current change from a small arc voltage change.