What is Gas-Metal Arc Welding commonly known as?

Gas-Metal Arc Welding (GMAW) is commonly known as MIG welding, which stands for Metal Inert Gas welding. This process uses a continuous solid wire electrode fed through a welding gun, creating an electric arc between the electrode and the workpiece, which melts the metal and joins the materials. The term "inert" refers to the shielding gas, usually argon or a mix of argon and carbon dioxide, which protects the weld pool from oxidation and contamination.

MIG welding is highly regarded for its versatility and ease of use, making it popular in both industrial and DIY applications. Its ability to weld a variety of materials, including steel, stainless steel, and aluminum, enhances its appeal in the welding industry.

The other options refer to different welding processes: TIG welding is a process that uses a non-consumable tungsten electrode; arc welding generally describes a broader category encompassing various techniques; and resistance welding is a fabrication process where heat is generated by the resistance to electric current between two workpieces. These distinctions clarify why MIG welding is the appropriate identification for Gas-Metal Arc Welding.