High current pulse arc welding method and flux cored welding wire

摘要

A pulsed arc welding method which uses a flux cored welding wire that contains at least one element selected from the group consisting of C, Si, Mn, P, S, Al, Ti, Zr and Mg, respectively in specific amounts, and wherein: the pulse peak current during the welding is set to 550-950 A; the pulse base current during the welding is set to 550 A or less; and the difference between the pulse peak current and the pulse base current is set to 200-600 A.