Activated tungsten inert gas (A-TIG) welding and Flux bound tungsten inert gas (FB-TIG) welding are two such variants that utilize suitable activating flux to improve upon various characteristics of conventional TIG welding.

Gas tungsten arc welding (GTAW), or TIG welding, is an arc welding process that uses a non-consumable tungsten electrode to create an arc and join metal. It requires shielding gas, mostly pure argon or argon mixed with helium.

According to The Welding Institute (TWI), TIG welding is a fusion welding process that uses a nonconsumable (tungsten) electrode to heat the workpiece. It then protects the welds with inert gas. What Does TIG Mean? TIG simply means tungsten inert gas welding. The welding process is also alternatively referred to as gas tungsten arc welding (GTAW).

TIG stands for tungsten inert gas and is technically called gas tungsten arc welding (GTAW). The process uses a non-consumable tungsten electrode that delivers the current to the welding arc. An inert gas, typically argon, protects and cools the tungsten and weld puddle.