Mild Steel Wire-Feed Speed, in./min Voltage, V Base-Material Thickness, in. CO2 75 Ar-25 CO, 98 Ar-2 0, Current A 0.035-in. 0.045-in. Ar 0.036 105-115 18 16 50-60 0.048 140-160 70 19 17 70-80 0.060 180-220 90-110 20 17.7 90-110 0.075 240-260 120-130 20.7 18 20 120-130 1/8 280-300 140-150 21.5 18.5 20.5 140-150 3/16 320-340 160-175 22 19 21.5 23.5 160-170 1/4 360-380 185-195 22.7 19.5 22.5 24.5 180-190 5/16 400-420 210-220 23.5 20.5 23.5 25 200-210 3/8 420-520 220-270 25 22 25 26.5 220-250 1/2 and up 375 28 26 29 31 300 TABLE 10-3 GMA Welding Parameters for Mild Steel
Mild Steel Wire-Feed Speed, in./min Voltage, V Base-Material Thickness, in. CO2 75 Ar-25 CO, 98 Ar-2 0, Current A 0.035-in. 0.045-in. Ar 0.036 105-115 18 16 50-60 0.048 140-160 70 19 17 70-80 0.060 180-220 90-110 20 17.7 90-110 0.075 240-260 120-130 20.7 18 20 120-130 1/8 280-300 140-150 21.5 18.5 20.5 140-150 3/16 320-340 160-175 22 19 21.5 23.5 160-170 1/4 360-380 185-195 22.7 19.5 22.5 24.5 180-190 5/16 400-420 210-220 23.5 20.5 23.5 25 200-210 3/8 420-520 220-270 25 22 25 26.5 220-250 1/2 and up 375 28 26 29 31 300 TABLE 10-3 GMA Welding Parameters for Mild Steel
Related questions
Question
Using Table 10-3, answer the following:
a. What should the wire-feed speed and voltage
ranges be to weld 1/8-in. (3 mm) metal with 0.035-in.
(0.90-mm) wire using argon shielding gas?
b. What should the amperage and voltage range be using 98% Ar + 2% O2 to weld 1/4-in. (6-mm) metal with
0.045-in. (1.2-mm) wire?
Transcribed Image Text:Mild Steel
Wire-Feed Speed, in./min
Voltage, V
Base-Material
Thickness, in.
CO2
75 Ar-25 CO,
98 Ar-2 0,
Current A
0.035-in.
0.045-in.
Ar
0.036
105-115
18
16
50-60
0.048
140-160
70
19
17
70-80
0.060
180-220
90-110
20
17.7
90-110
0.075
240-260
120-130
20.7
18
20
120-130
1/8
280-300
140-150
21.5
18.5
20.5
140-150
3/16
320-340
160-175
22
19
21.5
23.5
160-170
1/4
360-380
185-195
22.7
19.5
22.5
24.5
180-190
5/16
400-420
210-220
23.5
20.5
23.5
25
200-210
3/8
420-520
220-270
25
22
25
26.5
220-250
1/2 and up
375
28
26
29
31
300
TABLE 10-3 GMA Welding Parameters for Mild Steel
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