박판알루미늄 고속용접용 펄스MIG 용접특성

Joining thin aluminum alloy is difficult using most welding techniques Many of problems associated burn-through by the high heat input Common welding techniques are TIG, MIG, and MIG-PULSE welding The VP-GMA W provides more control of the heat balance m the welding arc by taking advantage of the different arc characteristics obtained with each of the two polarities. In this paper, we proposed new VP GMA Welding method by control DSP 320C32, and the characteristic and experiment result-voltage, current, welding bead, penentraion by this method are presented