Patent ID: 9283634
Filing Date: 2016-03-15
CPC Classification: B23K

Claim Text:
1. An arc welding method for arc welding two base materials with a brazing filler metal, at least one of the two base materials having a plating layer thereon, and comprising a plating layer removal process and a brazing filler metal welding process, which are performed alternately, wherein the plating layer removal process removes the plating layer by performing arc discharge at a first current value while moving a welding torch along a welding line without feeding the brazing filler metal, and the brazing filler metal welding process welds the brazing filler metal to a position where the plating layer is removed, by performing arc discharge at a second current value smaller than the first current value while feeding the brazing filler metal without moving the welding torch, and wherein one of the two base materials is a first base material which is an Fe-based metallic member coated with the plating layer containing Zn, the other is a second base material which is an Al-based metallic member, and the brazing filler metal is a ZnSi-based brazing filler metal.