Tweco 185TSW DC CC - Manual (Page 40)

40
7.08 Welding Parameters for Aluminum
Base Metal
Thickness
AC Current
for Aluminum
Tungsten
Electrode
Diameter
Filler Rod
Diameter
(if required)
Argon Gas
Flow Rate
Liters/min
Joint Type
30-45 Butt/Corner
0.040”
1.0mm
35-50
0.040”
1.0mm
1/16”
1.6mm
5-7
Lap/ Fillet
40-60 Butt/Corner
0.045”
1.2mm
45-70
0.040”
1.0mm
1/16”
1.6mm
5-7
Lap/ Fillet
60-85 Butt/Corner
1/16”
1.6mm
70-95
1/16”
1.6mm
1/16”
1.6mm
7
Lap/ Fillet
125-150 Butt/Corner
1/8”
3.2mm
130-160
3/32”
2.4mm
1/8”
3.2mm
3/32”
2.4mm
10
Lap/ Fillet
180-225 Butt/Corner
3/16”
4.8mm
190-240
1/8”
3.2mm
1/8”
3.2mm
10
Lap/ Fillet
240-280 Butt/Corner
¼”
6.4mm
250-320
3/16”
4.8mm
3/16”
4.8mm
13
Lap/ Fillet
Table 13 – AC TIG welding parameter
7.09 Welding Parameters for Steel
Base Metal
Thickness
DC Current
for Mild
Steel
DC Current
for Stainless
Steel
Tungsten
Electrode
Diameter
Filler Rod
Diameter
(if required)
Argon Gas
Flow Rate
Liters/min
Joint Type
35-45 20-30 Butt/Corner 0.040”
1.0mm
40-50 25-35
0.040”
1.0mm
1/16”
1.6mm
5-7
Lap/ Fillet
45-55 30-45 Butt/Corner 0.045”
1.2mm
50-60 35-50
0.040”
1.0mm
1/16”
1.6mm
5-7
Lap/ Fillet
60-70 40-60 Butt/Corner 1/16”
1.6mm
70-90 50-70
1/16”
1.6mm
1/16”
1.6mm
7
Lap/ Fillet
80-100 65-85 Butt/Corner 1/8”
3.2mm
90-115 90-110
1/16”
1.6mm
3/32”
2.4mm
7
Lap/ Fillet
115-135 100-125 Butt/Corner 3/16”
4.8mm
140-165 125-150
3/32”
2.4mm
1/8”
3.2mm
10
Lap/ Fillet
160-175 135-160 Butt/Corner ¼”
6.4mm
170-200 160-180
1/8”
3.2mm
5/32”
4.0mm
10
Lap/ Fillet
Table 14 – DC TIG welding parameters