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Direct Current Electrode Negative (DCEN): Suitable for acid electrode
welding.
Direct Current Electrode Positive (DCEP): Suitable for alkaline and cellulose
electrode welding.
No.
Item
No.
Item
1
Welding machine
3
Earth clamp
2
Electrode holder
4
Work piece
4. Guideline Table for TIG Welding Parameters
Parameters are bases on the workpiece material. When a workpiece with thickness
≥
4.0mm is welded, multi-layer and multi-pass welding is recommended.
Thickness
（
mm
）
Amperage
（
A
）
Diameter of
tungsten
electrode
（
mm
）
Diameter
of wire
（
mm
）
Gas flow
（
L/min
）
Stainless
steel
Titanium
0.3
~
0.5
10
∽
40
1.0
1.0
4
6
0.5
∽
1.0
20
∽
40
1.0
1.0
4
6
1.0
∽
2.0
40
∽
70
1.6
1.6
4
∽
6
6
∽
8
2.0
∽
3.0
80
∽
130
2.0
∽
2.4
2.0
8
∽
10
8
∽
10
3.0
∽
4.0
90
∽
150
2.4
∽
3.2
2.5
10
∽
12
10
∽
12
4.0
110
～
150
2.4
～
3.2
3.0
10
∽
14
12
∽
14
2
3
3
1
4
3
