Research on the processing technology of sheet metal welding First, sheet metal welding should choose the correct welding method. In sheet metal welding, the main welding methods are as follows: arc welding, argon arc welding, electroslag welding, gas welding, plasma arc welding, melt welding, pressure welding, and brazing. We should choose the correct welding method according to actual needs. Second, sheet metal welding should choose the welding method according to the material needs. In the welding process, when welding carbon steel, low-alloy steel, stainless steel and non-ferrous alloys such as copper and aluminum below 3mm, argon arc welding and gas welding should be selected. Airuida Precision Sheet Metal Company has advanced precision CNC machining equipment, such as AMADA CNC in Japan