Patent ID: 6518545
Filing Date: 2003-02-11
Classification: B23K

Abstract:
A process for controlling in real-time the power of penetration of a welding arc when performing the penetration pass of two parts to be joined together during welding, said welding arc produced between a welding torch of a welding machine and a metal wire, said process comprising:a) providing an arc welding power source producing a sequential waveform of current and of voltage, in a controlled-short-circuit mode, b) measuring the instantaneous voltage and current at the welding torch, at a higher frequency than that of the welding arc, c) calculating from the instantaneous voltage and current a measure of the power of penetration of the arc when welding said penetration pass of said two parts being welded together, and d) adjusting in real-time, at least one parameter of the welding machine, said adjusting step being based on the calculated power of penetration.