The gas metal arc welding process is commonly known by which of the following names?

The gas metal arc welding process is commonly known by which of the following names?

• A. MIG welding
• B. SMAW
• C. GTAW
• D. FCAW

Answer: (A)

Gas metal arc welding uses a continuously fed wire electrode and shielding gas to protect the weld pool, and in practice it’s most commonly called MIG welding. MIG stands for Metal Inert Gas, though many sources also reference Metal Active Gas because some shielding gases blend active components. This name helps distinguish it from other arc-welding methods: shielded metal arc welding uses a flux-coated stick electrode, gas tungsten arc welding uses a non-consumable tungsten electrode with a shielding gas, and flux-cored arc welding uses a wire with a flux core. Because the process described by this name is the gas metal arc welding method, MIG welding is the best answer.

Gas metal arc welding uses a continuously fed wire electrode and shielding gas to protect the weld pool, and in practice it’s most commonly called MIG welding. MIG stands for Metal Inert Gas, though many sources also reference Metal Active Gas because some shielding gases blend active components. This name helps distinguish it from other arc-welding methods: shielded metal arc welding uses a flux-coated stick electrode, gas tungsten arc welding uses a non-consumable tungsten electrode with a shielding gas, and flux-cored arc welding uses a wire with a flux core. Because the process described by this name is the gas metal arc welding method, MIG welding is the best answer.