Q. For this type of welding, you need an externally supplied shielding gas, and some of the most common used gases for this purpose are stainless steel, carbon steel, magnesium, copper, nickel, aluminum, and silicon bronze. Identify the welding method.
Solution:
MIG welding process uses a continuously fed electrode through a welding gun and the operator needs to pull a trigger in order to feed the consumable electrode through. Between the base material and the electrode an electric arc forms, which heats the material until it reaches the melting point that makes it possible to get it joined with another. For this type of welding, you need an externally supplied shielding gas.
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