Patent ID: 8884183

Claim:
A welding process for forming a weld seam between two edge portions, wherein said edge portions form a Y joint having a root portion and a bevel portion, said root portion being welded by a hybrid laser electric arc welding process including directing a laser beam and an electric arc by a hybrid laser electric arc welding head into a single interaction zone of plasma and molten metal, wherein said single interaction zone being located at said root portion and said bevel portion is welded by a submerged arc welding head in a submerged arc welding process, and wherein said hybrid welding head is mounted on a common carrier and said submerged arc welding head mounted on said common carrier a distance D away from said hybrid welding head, said common carrier configured to enable a relative movement between the common carrier and said work piece or work pieces such that said root portion and said bevel portion may be welded in a single pass; wherein the distance D is between 5 to 100 cm.