GTAW, or TIG welding, is a precise welding process that uses a nonconsumable tungsten electrode and inert shielding gas. GTAW can be used on a wide variety of metals, and can be performed manually or ...

Gas tungsten arc welding (GTAW, also known as TIG welding) also requires a shielding gas such as an argon/helium mixture or an argon/hydrogen mixture. TIG welding is used on thin metals because it ...

The shielding gas also influences the welding properties and has great ... Drawbacks with helium is a high cost and the low density. At TIG welding, high contents of helium will reduce the ...