Thursday, August 21, 2008

[MW:1047] thumb rule

hai friends
is there any thumb rule to find current and voltage in metal active
gas welding ... v r using semi automatic MAG machine.with 2.4 mm
filler wire dia .current in the rang of 570-670 amps and voltage
30-39 .and tell wat would b the best way to reduce spattesrs and blow
holes and cracks in this welding .

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