what is gmaw welding

Gas metal arc welding (GMAW), also known as metal inert gas (MIG) welding, is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal, which heats the workpiece metal. The wire electrode is continuously fed through a welding gun along with a shielding gas, which protects against contaminants in the air. GMAW is one of the most popular welding methods, especially in industrial environments, and is used extensively by the sheet metal industry and the automobile industry. It is also popular for automated welding, where robots handle the workpieces and the welding gun to accelerate manufacturing. GMAW welding has many applications in various industries, including manufacturing, automotive maintenance and production, construction, aerospace, pipe welding, shipbuilding, custom fabrication, railroad track repair and construction, and underwater welding.