Answer:
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Explanation:
Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to melt and join.
MIG welding, uses a continuously fed solid wire electrode that is used for filler metal that welds together two pieces of metal
Carbon dioxide in concentration of 1-2% is commonly used in the mix with argon to reduce the surface tension of the molten metal. Another common blend is 25% carbon dioxide and 75% argon for GMAW. Helium is lighter than air; larger flow rates are required. It is an inert gas, not reacting with the molten metals.
Gas metal arc welding (GMAW)
Welding Processes: The welding process is significant. ...
Base Metal Properties: Properties of the base metal affect welding performance