Plasma arc welding (PAW), closely related to TIG welding, constricts the ionized gas through a copper nozzle. This produces higher temperatures and velocities, creating a smaller cross-section of the weld. Plasma welding commonly uses the same non-consumable tungsten, just like in TIG welding.
Plasma welding robots can increase quality, while saving time and money by automating a more complex welding process. Plasma welding robots allows more flexibility with easy adjustments to the velocity and temperatures at which the weld is formed.