What is hot wire TIG Cladding or Surfacing?

2025-04-22 10:07:06

Hot wire TIG surfacing (Tungsten Inert Gas Welding with Hot Wire) is an advanced welding and surfacing process. Based on traditional TIG welding, it adds an additional heating device for the filler wire. During the welding process, the filler wire is preheated, so that the wire reaches a relatively high temperature before entering the welding pool, which accelerates the melting speed and significantly improves the welding efficiency. At the same time, because the filler wire is preheated, the heat input to the base metal during the welding process is reduced, and the range of the heat - affected zone is decreased, which can better ensure the performance of the base metal. It enables a good metallurgical bond between the surfacing layer and the base metal, improving the quality and performance of the surfacing layer. It is widely used in mechanical manufacturing, petrochemical, power and other fields for repairing worn parts and improving the surface properties of materials.