The main difference between MIG welding and MAG welding

The main difference between MIG welding and MAG welding lies in the composition and scope of application of the shielding gas. ‌‌

MIG welding (Metal Inert Gas Welding) uses an inert gas (such as argon or helium) as a shielding gas and is suitable for welding materials such as aluminum and aluminum alloys, copper and copper alloys, and stainless steel. There is almost no oxidation or burning loss during the welding process, only a small amount of evaporation loss, and the metallurgical process is relatively simple.

MAG welding (melting electrode active gas shielded welding) involves adding a small amount of active gas (such as oxygen or carbon dioxide) to an inert gas, and is suitable for welding high-strength steel and high alloy steel. Due to the addition of active gas in its protective gas, oxides can be better removed during the welding process, making it suitable for welding black metals such as carbon steel, alloy steel, and stainless steel.

In addition, MIG and MAG welding are similar in equipment, but MIG welding usually uses argon gas protection and is suitable for welding non-ferrous metals; MAG welding involves adding carbon dioxide to argon gas, making it suitable for welding high-strength steel and high alloy steel.