What is PTA? Plasma Transferred Arc (PTA) is an overlay welding method with deposits that are homogenous and fused to the substrate, forming a metallurgical bond.
Plasma Transferred Arc uses a constricted arc and powdered alloy, which is taken from a feeder to the plasma torch in a flow of argon gas. The powder is then taken away from the torch into the effluent arc, where it is melted and fused to the base metal. We also specialize in Plasma Transferred Arc Welding and PTA Hardfacing.