OM-283007 Page 27
.
These settings are guidelines
only. Material and wire type, joint
design, fitup, position, shielding
gas, etc. affect settings. Test
welds to be sure they comply to
specifications.
1
Material Thickness
Material thickness determines weld
parameters.
Convert material thickness to amper-
age (A):
0.001 in. (0.025 mm) = 1 ampere
0.0625 in. (1.59 mm)
÷
0.001 = 62.5 A
2
Select Wire Size
See table below.
3
Select Wire Feed Speed
(Amperage)
Wire feed speed (amperage) controls
weld penetration.
See table below.
4
Select Voltage
Voltage controls height and width of
weld bead.
Low Voltage: wire stubs into work
High Voltage: arc is unstable (spatter)
Set voltage midway between high and
low voltage.
1/16 or
0.0625 in.
2
1
9-3.
Typical Control Settings
Wire Size
Amperage Range
Recommended Wire Feed Speed
Wire Feed Speed*
0.024 in. (0.61 mm)
30
−
90 A
3.5 in. (89 mm) per amp
3.5 x 62.5 A = 219 ipm (5.56 mpm)
0.030 in. (0.76 mm)
40
−
145 A
2 in. (51 mm) per amp
2 x 62.5 A = 125 ipm (3.19 mpm)
0.035 in. (0.89 mm)
50
−
180 A
1.6 in. (41 mm) per amp
1.6 x 62.5 A = 100 ipm (2.56 mpm)
*62.5 A based on 1/16 in. (1.6 mm) material thickness.
ipm = inches per minute; mpm = meters per minute
