- 29. August 2019
- Posted by: Andreas Janisch
- Category: Welding
Plasma welding or plasma arc welding is a modified form of TIG welding.
It uses a tungsten electrode just like TIG welding, however, it is placed in a specialized nozzle which sends inert gases towards the arc region. These inert gases, being sent at high velocity, produce a plasma arc stream with temperatures ranging to 17000 °C. The higher temperatures of plasma welding are mainly due to constriction of the arc during the production of plasma which raises the power density of arc. These higher temperatures can melt any metal easily.
For this reason, plasma welding can weld metals such as tungsten that were previously hard to weld. Plasma welding produces high-quality welds, enables high cutting speeds and low distortion. This makes it ideal for welding high-quality assemblies in the automotive and aerospace industries.