Application of Arc Sound for Detection of Welding Process

Investigation on Welding Arc Sound (Report 7)

Abstract

In this paper we describe an application of arc sound for the detection of welding process. Arc sound has a good competence for the useful source of the information with high level of SPL and good S/N. The hole and step on the base metal, change in arc length, change in groove width, interruption of shielding gas, humping bead formation and burn-through were detected by the arc sound. And the value of its application was confirmed.