Arc air gouging

From GAWDAwiki

Arc air gouging is a competitive process to flame gouging. It uses a hollow carbon electrode through which compressed air is passed. The electrical arc generated between the electrode and workpiece melts the metal, which is then blown away by compressed air. Arc air gouging has poor environmental performance. ^[1]

References

1. http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/a.asp