Hybrid welding method for T-joint using laser beam welding and arc welding

• Main Authors: ZHANG XUDONG, ASHIDA EIJI, SOGA YUKIHIRO, TARASAWA SHOH
• Format: Patent
• Language: Chinese; English
• Published: 12.03.2014
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The purpose of the present invention is to provide a hybrid welding method for a T-joint using laser beam welding and arc welding, whereby a deep weld penetration is formed on the adhesive surface of the rib and flange of the T-joint and a welded joint having a stable weld penetration shape is obtained by avoiding the energy consumption amount from increasing and the welding efficiency from declining. The hybrid welding method uses laser beam welding and arc welding for welding a T-joint in which a rib (2) that is a material to be welded orthogonally comes into contact with the surface of a flange (1) that is another material to be, wherein the flange (1) and the rib (2) which constitute the T-joint are welded by forming: a groove (A) on the side surface of the rib (2) at the contact section of the rib (2) and the flange (1) which constitute the T-joint; a flat section (4) on the bottom of the groove (A) formed on the contact section of the rib and the flange; and welding beads (71, 72) of a welding metal on