Study on gas metal arc welding procedure of stainless steel

Generally, GMA welding method is used to high efficient welding process of stainless steel. In this paper, aiming to establish the suitable welding procedure, MIG and MAG welding method of 3 to approximately 9 mm thick SUS304 plate are investigated. In MIG welding method using solid wire, the short arc welding conditions with pulsating control arc effective in various welding operations. On the other hand, in MAG welding method using flux cored wire, the suitable arc voltage conditions are about 2 V upper than short circuiting voltage. In each welding methods, the suitable welding conditions of various kind of joints are easily found by using the graphs those show the relationship between welding condition and the volume of wire deposited metal for unit welding length (Vw).