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Characteristics of Pulse MIG Arc Welding with a Wire Melting Rate Change by Current Polarity Effect
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 Title & Authors
Characteristics of Pulse MIG Arc Welding with a Wire Melting Rate Change by Current Polarity Effect
Kim, Tae-Jin; Lee, Jong-Pil; Min, Byung-Duk; Yoo, Dong-Wook; Kim, Cheul-U;
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Joining thin aluminum alloy is difficult using most welding techniques. Many of the problems are associated with bum-through by the high heat input. Common welding techniques are TIG (Tungsten Inert Gas), MIG (Metal Inert Gas), and PULSE-MIG welding. The method provides more control of the heat balance in the welding arc by taking advantage of the different arc characteristics obtained with each of the two polarities. In this paper, we proposed a new welding method by control DSP 320C32, and the characteristic and experiment result-voltage, current, welding bead, and penetrations by this method are presented.
Pulse MIG;Arc welding;Current polarity;Thin aluminum welding;Penetration;
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