Patent ID: 6301944
Filing Date: 2001-10-16
Classification: B21D,B21F,B23K,C21D

Abstract:
A method of fabricating low-cast weld wire for welding comprising the steps of:displacing weld wire through a rotary straightener having at least a pair of dies each having a slider and axially aligned entry and exit openings;fixing the slider in said first die to introduce a bend in the wire in a first direction as the wire is displaced through said first die;rotating the first die in a rotational direction about an axis corresponding to the axially aligned openings;fixing the slider in said second die to introduce a bend in the wire in a second direction opposite said first direction as the wire is displaced through said second die;rotating the second die in a rotational direction opposite the rotational direction of the first die about said axis;bending the wire in each of the first and second dies to introduce a hardness in the wire in excess of 3/4-hardness; andwinding the wire onto a spool as the wire exits the exit opening of the second die.