Plasma Transferred Arc Welding. Pta or plasma transferred arc welding is a welding process that uses a tungsten electrode to create a high density arc. Transferred plasma arc welding.

The pta process can be considered a derivation of the paw process. Plasma transferred arc welding. Plasma transferred arc welding also referred to as the pta process is a thermal coating process.
Transferred plasma arc welding.
Plasma arc welding is a non conventional form of welding which can be applied to almost any existing metals. Using a constrictor nose to harness and concentrate very high energy and restricting the electric arc using various gas control methods ptaw. The arcs extreme heat welds two metal pieces together. Pta process is charcterized by an high density plasma arc obtained by ionization of argon gas passing trough the electric arc formed between a non consumable tungsten.