Pulsed-arc welding process and device
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United States of America Patent
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Apr 20, 2004
Grant Date -
Sep 19, 2002
app pub date -
Dec 21, 2001
filing date -
Dec 21, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for the arc welding in pulsed mode of one or more workpieces made of carbon steel, stainless steel, aluminum or aluminum alloy, with the use of a gas shield, in which an electric arc welding torch is supplied with at least one consumable wire at a wire feed speed (V.sub.wire) and the consumable wire is subjected to current pulses, in order to melt the end of the consumable wire in which, for a given pulse frequency, a wire feed speed (F.sub.wire), a mean current (I.sub.mean) value and an rms current (I.sub.rms) value are chosen, so as to detach one drop of molten metal per current pulse and to obtain a low degree of spatter.
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