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>Effects of current waveform parameters during droplet transfer on spatter in high speed waveform controlled Short-circuiting GMAW
Effects of current waveform parameters during droplet transfer on spatter in high speed waveform controlled Short-circuiting GMAW
Aim at improving the stability of the Short-circuiting Gas Metal Arc Welding (GMAW-S) process for the enhanced speed usage, effects of current waveform parameters during short-term on the welding stability have been investigated by experimental method. The welding power source used for the research is an inverter with a special current waveform control. It is shown that the spatter decreases at first then increases with each increase of the low current period, current increase rate and the maximum current limit. The test results are provided for welding of 1mm and 3mm mild steel at speed of 1.2m/min. The stable GMAW-S process under high speed welding condition has been achieved by optimizing the parameters.
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