Method of producing flux-cored wires by laser welding

摘要

Fabrication of a welded tube containing filler elements comprises: (a) continuously feeding a metal sheet and forming it into a gutter or tube (1); (b) introducing the filler elements (2) through the gap (3); (c) forming the filled sheet into a tube to provide a quasi contact between the longitudinal edges (4) of the sheet; (d) rotating the tube through an angle of 45 to 110[deg] with respect to the vertical; (e) laser welding the edges of the sheet. An independent claim is also included for a sheathed electric arc welding wire produced by this method.