What is TIG welding?

TIG welding is the process of using a tungsten electrode in conjunction with a gas, such as argon, during welding. The tungsten electrode warms the metal being welded while the gas protects it from contamination from the air.

TIG welding is capable of welding a large number of metals and alloys, including steel, aluminum, magnesium and brass. When a clean metal is welded, TIG welding produces no sparks, smoke or fumes. TIG welding is possible from a variety of welding positions including flat, horizontal, vertical and overhead welds. Types of tungsten electrodes used in TIG welding include ceriated CeO2, thoriated ThO2, lanthanated La2O3 and zirconiated ZrO2.