MK Products CobraMig 260 PS/Feeder - Manual (Page 17)

CobraMig 260 Owner's Manual - Page 11
should bisect the 90 degree angle made by the joint and a push angle of from
10 to 15 degrees in the direction of travel is used.
Strike an arc and move the torch progressively along the joint at a smooth
steady rate. Most operators, unfamiliar with aluminum, tend to move too
slow and consequently overheat the plate. A travel rate of 25 to 35 ipm
should be used.
The arc should sound smooth and the weld bead should be bright and shiny.
If spatter occurs and the arc sounds like a short arc condition, decrease the
wire feed speed or, if the weld looks cold, increase the voltage until a smooth
spray transfer is achieved.
The above condition provides 20 volts and 112 amps. If exact volts and amps are
required, purchase meter kit P/N 005-0585.