AUTOMATIC WIRE FEEDING SYSTEM

摘要

An apparatus and method for feeding welding wire, where the apparatus contains a wire feeding device (105) which pays out a wire (101) and a power source (107) which provides a current and voltage to the wire while it is being paid out. The apparatus further includes a detection circuit (113) which detects a short circuit in the wire when the wire makes contact with a work piece or the like, and upon detection of the short circuit the wire feeding device stops feeding the wire so that a desired stick out distance (D) is achieved.