How to weld aluminum?

Almost all welding methods can be used to weld aluminum, but aluminum has different adaptability to various welding methods, and each welding method has its own application occasions. Gas welding and covered electrode arc welding equipment is simple and easy to operate. Gas welding can be used for repair welding of aluminum plates and castings with low requirements on welding quality. Covered electrode arc welding can be used for repair welding of aluminum alloy castings. Inert gas shielded welding (TIG or MIG) is the most widely used welding method for aluminum and aluminum alloys. Aluminum and aluminum alloy sheets can be welded by tungsten alternating current argon arc welding or tungsten pulse argon arc welding. Thick aluminum and aluminum alloy plates can be welded by tungsten-helium arc welding, argon-helium mixed tungsten gas shielded welding, MIG welding and pulsed MIG welding. Metal arc welding and pulsed metal arc welding are widely used (argon or argon/helium mixture).