Plasma Arc Welding 

PAW Plasma Arc Welding is a process that utilises a tungsten electrode, similar to TIG, and a plasma to transfer an electric arc to the component to be welded. The plasma is created by heating a gas, typically argon, to a very high temperature (up to 28,000ºC) and ionising it so that it conducts electricity. A second gas flow is used to shield the arc and the weld pool. By controlling the plasma, it is possible to produce a high concentration of heat in a small area. PAW can be used to produce high-quality welds. PAW is used in precision applications and, as the plasma protects the electrode, increasing the electrode life, it is used in high-production welding.

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