Plasma welding

Plasma welding

Plasma welding is a melting process that uses the gas jet in a plasma state to melt a material and blow it out of the joint

The electrode is located in a water- or air-cooled gas nozzle inside the torch. Plasma gas is passed through the nozzle and is strongly constricted with the arc (pilot arc) at the end of the nozzle. The plasma gas is ionized and strongly heated. The resulting plasma jet can reach temperatures up to 30,000°C. The hot arc produces the high energy density. The jet has a very high speed when it hits the workpiece. During this process, so-called recombination takes place. The heat is transferred to the workpiece, melting the material. The gas finally cuts the material out of the notch.