A WELDING PROCESS AND A WELDING ARRANGEMENT

摘要

A welding arrangement and a welding process for forming a weld seam (52) between two edge portions(54a, 54b), wherein the edge portions (54a, 54b) form a Y joint having a root portion (58) and a bevel portion(60), said root portion (58) being welded by a hybrid laser electric arc welding process including directing a laser beam (10) and an electric arc (22) in a single interaction zone (24) of plasma and molten metal.A hybrid laser electric arc welding head (2) and welding submerged arc welding head (4) are arranged on a common carrier structure(46, 50) for welding the Y joint.