Product Knowledge
Plasma arc welding
Plasma arc welding is a gas arc welding process. Plasma refers to superheated gas at a temperature of 15,000–25,000 degrees centigrade (25,000–45,000 Fahrenheit) in which the arc burns surrounded by the shielding gas between a non-consumable tungsten electrode and the work piece.
Usually a filler material is used in plasma arc welding, introduced to the molten weld as wire. In powder plasma arc welding, the filler material is introduced to the molten weld with the shielding gas as metal powder.
The high energy density of plasma arc welding also enables an arc that completely penetrates the work pieces. Plasma arc welding is particularly suitable for mechanised welding processes, and is used, for example, in welding stainless steel.
