Reference Tables - Firepower FP-125 Operating Manual

OpERATION

4.12 Reference Tables

The following tables are provided as user aids when performing MIG or FLUX CORED welding.
Type of Gas
Carbon Dioxide (CO2)
Argon (Ar) - Carbon Dioxide (CO2)
Argon (Ar)
Result Desired
Arc
Voltage
Deeper
Penetration
Shallower
Penetration
Larger Bead
Smaller Bead
Higher Narrower
Bead Decrease
1
Flatter Wider
Bead Increase
1
Faster
Deposition Rate
Slower
Deposition Rate
Key: (1) First Choice, (2) Second Choice, (3) Third Choice, (4) Fourth Choice, (5) Fifth Choice
Same adjustment is required for wire feed speed.
* When these variables are changed, the wire feed speed must be adjusted so that the welding current remains con-
stant. See DEPOSITION RATE in the WELDING VARIABLES section. This change is especially helpful on materials of
20 gauge (.04" 1mm approximately) and smaller in thickness.
Operation
Typical Mixtures
75% Ar – 25% CO2
Table 4-1: Type of Gas
Welding Variable
Welding Current Travel
(wire speed) Speed
Increase
1
Decrease
1
Increase Decrease
1 2
Decrease Increase
2 2
Increase
1
Decrease
1
Table 4-2: Welding Variables
NOTE
4-9
FIREpOwER Fp-125, 135, 165
Primary Uses
Mild and low alloy steels
Mild and low alloy steelsStainless Steel
Aluminum
Nozzle Angle Stick out
Trailing Max
3
25° Decrease
2
Leading Increase
3 2
Increase
3
(*)
Decrease
3
(*)
Trailing Increase
2 3
90° or Leading Decrease
2 3
Increase
2
(*)
Decrease
2
(*)
Wire Gas
size Type
Smaller
5
(*) CO
4
2
Ar CO
4
2
Larger mix
5
Smaller
3
Larger
3
Manual 0-5123