Craftsman 30084N Operation Manual - Page 24

Typical MIG Process Control Settings

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6-2. Typical MIG Process Control Settings NOTE 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. Material thickness determines weld parameters. 1/8 or .125 in .035 in Wire Size .023 in .030 in .035 in Amperage Range 30 - 90 A 40 - 145 A 50 - 180 A Wire Size .023 in .030 in .035 in Recommendation 3.5 in per ampere 2 in per ampere 1.6 in per ampere Wire Speed (Approx.) 3.5 x 125 A = 437 ipm 2 x 125 A = 250 ipm 1.6 x 125 A = 200 ipm Low voltage: wire stubs into work High voltage: arc is unstable (spatter) Set voltage midway between high/low voltage. Convert Material Thickness to Amperage (A) (.001 in = 1 ampere) .125 in = 125 A Select Wire Size Select Wire Speed (Amperage) 125 A based on 1/8 in material thickness ipm = inch per minute Select Voltage Wire speed (amperage) controls weld penetration (wire speed = burn-off rate) Voltage controls height and width of weld bead. OM-194 199 Page 21 Ref. ST-801 865

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OM-194 199 Page 21
6-2.
Typical MIG Process Control Settings
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.
NOTE
1/8 or
.125 in
Material thickness determines weld
parameters.
Convert Material
(.001 in = 1 ampere)
.125 in = 125 A
Select Wire Size
Wire Size
Amperage Range
.030 in
.035 in
.023 in
40 – 145 A
50 – 180 A
30 – 90 A
.035 in
Select Wire Speed
Select Voltage
Wire
Recommendation
.030 in
.035 in
.023 in
2 in per ampere
1.6 in per ampere
3.5 in per ampere
Wire Speed
2 x 125 A = 250 ipm
1.6 x 125 A = 200 ipm
3.5 x 125 A = 437 ipm
Set voltage midway between high/low voltage.
Low voltage: wire stubs into work
High voltage: arc is unstable (spatter)
125 A based on 1/8 in
Thickness to
(Amperage)
material thickness
Size
(Approx.)
Amperage (A)
ipm = inch per minute
Ref. ST-801 865
Wire speed (amperage) controls weld pe-
netration (wire speed = burn-off rate)
Voltage controls height and width of
weld bead.