Tweco PWH-M 2A User Manual
Page 20
Operation
3-2
Manual 0-2005
Table 3-A Suggested Starting Parameters for Manual Fusion Welding - Thermal Arc 2A Torch
Std.
Ext.
SCFH
lpm
0.005
0.13
8-2077
0.014
8-2044
8-2046
4
3-5
0.25-0.5 0.12-0.24
8-2078
0.022
8-2044
8-2046
4
3-5
0.25-0.5 0.12-0.24
8-2079
0.031
8-2044
8-2046
4
3-5
0.25-0.5 0.12-0.24
0.010
0.25
8-2080
0.046
8-2044
8-2046
4
4-10
0.25-0.5 0.12-0.24
0.020
0.051
8-2082
0.062
8-2044
8-2046
4
10-15
0.25-0.5 0.12-0.24
8-2024
0.062
8-2033
0
10-15
0.25-0.5 0.12-0.24
1/32
0.80
8-2083
0.081
8-2044
8-2046
4
20-25
0.4-0.5
0.19-0.24
8-2033
4
0.19-0.24
8-2023
0.046
8-2033
0
20-30
0.4-0.6
0.19-0.28
1/16
1.6
8-2023
0.046
8-2033
0
30-35
0.6-0.7
0.28-0.33
8-2024
0.062
8-2033
0
30-45
0.6-0.9
0.28-0.42
3/32
2.4
8-2024
0.062
8-2033
0
45-55
0.9-1.1
0.42-0.52
8-2025
0.081
8-2033
0
45-60
0.9-1.2
0.47-0.57
1/8
3.2
8-2025
0.081
8-2033
0
60-75
1.2-1.5
0.57-0.71
0.050
1.3
8-2023
0.046
8-2033
0
25-35
0.5-0.7
0.24-0.33
8-2024
0.062
8-2033
0
25-40
0.5-0.8
0.24-0.38
1/16
1.6
8-2024
0.062
8-2033
0
30-50
0.6-1.0
0.28-0.47
3/32
2.4
8-2025
0.081
8-2033
0
60-75
0.9-1.4
0.42-0.66
0.010
0.25
8-2080
0.046
8-2044
8-2046
4
4-8
0.25-0.5 0.12-0.24
0.020
0.51
8-2082
0.062
8-2044
8-2046
4
10-15
0.25-0.5 0.12-0.24
8-2024
0.062
8-2033
0
10-15
0.25-0.5 0.12-0.24
8-2023
0.081
8-2044
8-2046
4
10-15
0.25-0.5 0.12-0.24
Carbon Steel
Ar(95%)/H
2
(5%)
or Argon
Titanium
Argon
Inch
mm
Cat. No.
Orifice
Dia.
(inch)
Material/Thickness
Tip
Electrode
Ar(95%)/H
2
(5%)
or Argon
Catalog Number
Shield Gas
8-15 SCFH
(3.8-7.1 lpm)
Stainless Steel
Current Range
(Amps)
Plasma Gas
(Argon) Flow
Gauge*
* Gauge settings are identified by the number of rings on the gauge and are for maximum elec-
trode setback. See Torch Assembly, step 4 for proper adjustment procedure.
NOTE:
This information represents our best judgement but Thermal Dynamics Corporation assumes no
liability for its use. The parameters listed above may be varied to optimize performance.