TIG WIRES
Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG)
welding is an arc welding process that uses a non-consumable tungsten
electrode to produce the weld. The weld area is protected from atmospheric
contamination by a shielding gas (usually an inert gas such as argon), and a
filler metal is normally used, though some welds, known as autogenous welds,
do not require it. A constant-current welding power supply produces energy
which is conducted across the arc through a column of highly ionized gas and
metal vapors known as a plasma.