Lincoln Electric INVERTEC STT Series Service Manual page 20

B-9
TABLE B.7 - ALL POSITION WELDING .045" BLUE MAX MIG 308LSi
Wire Feed
Speed
Material Size (in/min.)
3/16" 160
10 ga. 150
12 ga. 135
14 ga. 120
16 ga. 100
1
Procedures were developed using a shielding gas composition of 90% Helium 7-1/2% Argon 2-1/2% Carbon Dioxide.
Shielding gas flow rate of 25 CFH.
TABLE B.8 - ALL POSITION WELDING .035" BLUE MAX MIG 308LSi
Wire Feed
Speed
Material Size (in/min.)
10 ga. 250
12 ga. 230
14 ga. 210
16 ga. 190
18 ga. 175
1
Procedures were developed using a shielding gas composition of 90% Helium 7-1/2% Argon 2-1/2% Carbon Dioxide.
Shielding gas flow rate of 25 CFH.
TABLE B.9 - ALL POSITION WELDING .030" BLUE MAX MIG 308LSi
Wire Feed
Speed
Material Size (in/min.)
10 ga. 235
12 ga. 225
14 ga. 200
16 ga. 190
18 ga. 180
20 ga. 170
1
Procedures were developed using a shielding gas composition of 90% Helium 7-1/2% Argon 2-1/2% Carbon Dioxide.
Shielding gas flow rate of 25 CFH.
OPERATION
Background
Peak Current Current
Control Setting Control Setting
155 105
140 95
135 90
110 80
105 70
Background
Peak Current Current
Control Setting Control Setting
160 100
140 90
130 85
120 80
95 70
Background
Peak Current Current
Control Setting Control Setting
195 65
180 60
180 60
175 55
170 50
160 45
INVERTEC STT
1
Tip to Plate
Travel Speed Distance (in)
(in/min.)
9 1/4--5/16
14 1/4--5/16
17 1/4--5/16
17 1/4--5/16
15 1/4--5/16
1
Tip to Plate
Travel Speed Distance (in)
(in/min.)
12 1/4--5/16
13.5 1/4--5/16
10 1/4--5/16
12.5 1/4--5/16
11 1/4--5/16
1
Tip to Plate
Travel Speed Distance (in)
(in/min.)
11.5 1/4--5/16
14 1/4--5/16
12.5 1/4--5/16
13 1/4--5/16
14 1/4--5/16
16 1/4--5/16
B-9
Welding
Current
(approx. AMPS)
150
145
120
105
95
Welding
Current
(approx. AMPS)
130
120
110
100
85
Welding
Current
(approx. AMPS)
105
95
90
85
75
65