Plasma Transferred Arc Welding (PTAW) is a great process for robotic joining and overlay. The tightly columnated arc focuses the arc energy in a small area, making torch height less critical. The tungsten electrode is protected. So you change the tungsten less and weld more. PTAW allows the use of powdered filler materials, so you can weld all sorts of composite and exotic metals.
- Post Date: April 16, 2021