Originally the process was evolved in America in 1940 for welding in the aircraft industry. It developed into the tungsten inert-gas shielded arc process which in turn led to shielded inert-gas metal ...

Weld monitors and weld controllers are also used in a variety of other applications including inert metal gas (MIG) welding, tungsten inert gas (TIG) welding, plasma arc welding, submerged arc welding ...