TIG ARC WELDING METHOD FOR REPAIRING

摘要

PURPOSE:To improve a welding quality and welding operability by welding by inserting a tungsten electrode and welding wire with access thereto inside the hole after removing in a small area the defective part of the defect generated in a welding zone. CONSTITUTION:The electrifying body 3 fitting the welding wire 1 and tungsten electrode 4 and insulating tip 2 are integrally turned at the position apart in several mm from the hole wall inside the hole part 7a of a base metal 7 and the current in the same direction as that of the welding arc is continuously or intermittently fed via the feeding tip from a wire heating power source 11 to the welding wire 1 to perform the welding with the welding arc 5 directed for the hole wall direction of the base metal 7. The welding work man-hour is thus reduced and the welding quality and welding operability can be improved as well.