PULSED CURRENT SYNCHRONIZING FILLER WIRE-FEEDING NON-CONSUMABLE ELECTRODE ARC WELDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a pulsed current synchronizing filler wire-feeding non-consumable electrode arc welding method which is capable of obtaining superior welding quality by preventing a large droplet from being formed during the base period Tb. SOLUTION: This is the pulsed current synchronizing filler wire-feeding non-consumable electrode arc welding method in which the feeding of a filler wire 4 is stopped after it is fed in retreat to the position Lr where the tip end of the filler wire is deviated from the arc generating part at the start of the base period Tb. COPYRIGHT: (C)2006,JPO&NCIPI