5
When the short circuit current is at
the correct value, the parting of the molten drop from the wire
is smooth, with
very little spatter. Typical short circuit currents required for metal transfer
and the best arc stability appear
on Table 3-1. Table
3-1 – Typical Circuit Currents Reguired for Metal Transfer
WIRE ELECTRODE WIRE
ELECTRODE DIAMETER
SHORT CIRCUIT TYPE
IN. mm
CURRENT MILD
STEEL .030 .76
300 MILD
STEEL .035
.89
320 MILD
STEEL .045
1.1 370
MILD STEEL .052
1.3
395 MILD
STEEL .062
1.6
430 ALUMINUM
.030
.76 175
ALUMINUM
.035
.89 195
ALUMINUM .045
1.1 225
ALUMINUM .062
1.6 290
