LASER AND ARC HYBRID WELDING METHOD, HYBRID WELDING HEAD AND HYBRID WELDING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a hybrid welding method using both laser and arc capable of filling a member to be welded having a large bevel with a weld metal without increasing the number of welding times, and to provide a hybrid welding head and a hybrid welding apparatus.;SOLUTION: A positive-polarity consumable electrode-type gas shield arc-welding is used for an arc-welding method, and an arc electrode is installed vertically to a member to be welded, and a laser is radiated at a sweep back angle to the weld direction into the range where a molten pool formed by the laser from just under the arc ahead of the arc and a molten pool formed by the arc are integrated together.;COPYRIGHT: (C)2014,JPO&INPIT