Development of Low Frequency Pulsed MIC Welding Process for Al and its alloy

Study on Low Frequency Pulsed MIG Welding Process (Report 1)

Abstract

The low frequency pulsed MIG welding process of new current waveform control to switch over unit pulse conditions (pulse current, pulse duration) in the fixed cycle was developed and its effect were investigated for aluminium and its alloy.
By using this new welding process, the bead appearance having clear ripple pattern, such as TIG welding bead can be obtained and the gap tolerance of lap and butt welding joint can be expanded.