Apparatus and method of short circuiting arc welding

Abstract From the Canadian patent

Abstract, In a short circuiting arc welding apparatus and method wherein a continuously fed welding wire alternates between an arcing condition during which the wire is spaced from the molten pool of the workpiece and a short circuit condition during which the melted metal on the end of the welding wire is in contact with the molten metal pool and thereafter transfer to the workpiece by a necking action breaking the melted metal from the wire, there is provided an improvement including providing a first high inductance current control circuit for continuously directing a low level arc sustain-, ing, backgroung current between the welding wire and She workpiece and providing, a second …