Patent ID: 6246008
Filing Date: 2001-06-12
Classification: B23K

Abstract:
A process for producing a core wire for welding electrodes comprising the steps of:(a) providing a core of an alloy selected from the group consisting of alloys of iron, nickel, cobalt, copper, aluminum, and mixtures thereof;(b) providing a first metal strip to form an outer sheathing;(c) providing a second metal strip to form an inner sheathing;(d) locating the second metal strip on the first metal strip;(e) shaping the first metal strip and the second metal strip simultaneously to form a circular channel;(f) positioning the core in said circular channel; and;(g) further shaping the first metal strip whereby said second metal strip encloses said core and said first metal strip encloses said second metal strip to form the inner sheathing and the outer sheathing.