Illinois Tool Works Inc.
Wire delivery apparatus with a non-rotational actuator

Abstract:

In certain embodiments, a welding wire delivery system includes a non-rotational actuator configured to engage, disengage, and move welding wire. In certain embodiments, the welding wire delivery system includes a piezoelectric walk motor, a piezoelectric worm drive, a piezoelectric wave drive, a shape memory alloy, a solenoid piston, a linear actuator or motor, or a voice coil actuator.