TIG welding

TIG welding is a process that uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas (argon or helium), and a filler metal is applied.
TIG welding is a slower and more specialised process than MIG welding and is best used for the welding of complex parts that require high quality finishes. It is also mainly used for the welding of stainless steel and aluminium components.