MAGNETIC STIR-WELDING METHOD

摘要

PROBLEM TO BE SOLVED: To improve the ultrasonic permeability of the joint weld zone of an austenitic stainless steel. SOLUTION: When welding a groove 4 for joint, which is formed between base materials 3 consisting of the austenitic stainless steel, a stirring force F by magnetism is given to a melting pool 5a by setting a magnetic frequency from 4 to 10 Hz. Consequently, since the stirring frequency of the melting pool 5a can be increased and sufficient stirring can be performed without being affected by gravity, the texture of the joint weld zone 5 can be micronized even by welding in any welding position.