TIG - Tungsten inert gas welding, is a melting process (1946, USA) with non-consumable electrode. Thin sheets of aluminium and stainless steel are processed neatly with this welding method. In TIG welding, the substances to be connected are liquefied and protected from the influence of oxygen with the protective gas supplied. Subsequently, the liquefied substances harden and are firmly connected.
Depending on the material, alternating or direct current is used.