25 Jul,2025
Melt Inert-gas Welding
Melt inert-gas welding is an arc welding method that uses a melting electrode and an external gas as an arc medium to protect the metal droplets, the welding pool and the high-temperature metal in the welding area. It is called melt inert gas shielded arc welding. The arc welding method using an inert gas (Ar or He) shielded arc welding with a solid wire is called melt inert gas shielded welding, or MIG welding for short.
The heat source is also a DC arc, but the polarity is opposite to that used in TIG welding. The shielding gas used is also different, with 1% oxygen added to argon to improve the stability of the arc.There are also some differences in the basic process, such as jet transfer, pulse jet, ball transfer and short circuit transfer
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