MIG welding principle - an arc welding method that uses inert gas as the shielding gas and welding wire as the melting electrode.
The protective gas is usually argon or helium or their mixture. MIG uses inert gases, while MAG adds a small amount of active gases such as oxygen, carbon dioxide, etc. to the inert gases.
Main characteristics - good welding quality; High welding productivity; No deoxygenation and dehydrogenation reaction (easy to form welding defects, particularly strict requirements for surface cleaning of welding materials); Poor wind resistance; The welding equipment is complex.
Application - It can weld almost all metal materials, mainly used for the welding of non-ferrous metals and their alloys, stainless steel, and certain alloy steels (too expensive). The thinnest thickness is about 1 millimeter, and the larger thickness is basically unrestricted.
