Stick Welding; Dc Tig Welding - Boss ARC 140 Operating Manual

4.01

Stick welding

l
Connect work lead to negative terminal.
l
Connect electrode lead to positive terminal.
l
Switch machine on.
l
Set welding current control (see table 5).
Workpiece thickness mm
Electrode diameter mm
Welding current£¨ A£©
4.02

DC TIG welding

l
Connect work lead to positive terminal.
l
Connect TIG torch to negative terminal.
l
Switch machine on.
l
Set welding current control (see table 6).
l
Use TIG torch with value control.
Workpiece
thickness (mm)
0.3-0.5
0.5-1.2
1.2-2
1.2-2
2-4
4-6
BOSS ARC 140¡¢ 160 Operating Manual
0.5-2.0
1.0-2.0
10-50
Tungsten Welding current
diameter (mm)
1-1.6
1.6-2
1.6-2
1.6-2
2-4
3-4
2.0-5.0
2.0-3.2
50-150 150-250
Table 5
Filler wire
(A) diameter (mm)
5-30
10-50
10-50
30-70
60-100
100-200
Table 6
- 13 -
5.0-7.0
3.2-4.0
Argon Gas flow
1.2-1.6
1.2-1.6
1.6-2.0
1.6-2.0
2.0-2.5
(L/min)
3-8
4-8
4-8
6-9
7-10
1-15