Inert Gas Welding a process developed in the 1940s, and it's a semi-automated. In this process the welder still requires skills, but the MIG welding machine will continuously keep filling the joint being welded. MIG welders consist of a handle and a trigger controlling a wire feed, feeding the wire from a spool to the weld joint. The wire is similar to a bicycle brake cable. The wire runs through the liner, which also has a gas feeding through the same cable to the point of the arc, which protects the weld from the air.MIG welding is used in fabrication shops where production is high, and the possibility of wind blowing away your gas shielding is unlikely.
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