- 20 -
5.0
120
~
180
2.4
~
3.2
3.0
10
~
15
12
∽
15
6.0
150
~
200
2.4
~
3.2
3.0
10
~
15
12
∽
15
8.0
160
~
220
3.2
~
4.0
3.2
~
4.0
12
~
18
14
∽
18
12.0
180
~
240
3.2
~
4.0
3.2
~
4.0
12
~
18
14
∽
18
5. Guideline Table for TIG AC Welding Parameters
Parameters are bases on aluminium alloy welding
Thickness
(
mm
)
Amperage
(
A
)
Diameter of
tungsten
electrode
(
mm
)
Diameter of
wire
(
mm
)
Gas flow
(
L/min
)
0.6
25
∽
40
1.0
∽
1.6
0
∽
1.0
4
∽
5
1.0
40
∽
60
1.0
∽
1.6
0
∽
1.6
4
∽
7
1.5
60
∽
9
0
1.0
∽
1.6
0
∽
1.6
6
∽
9
2.5
80
∽
120
1.6
∽
2.4
1.6
~
2.4
6
∽
9
3.0
100
∽
160
1.6
~
2.4
1.6
~
2.4
7
∽
10
4.0
130
∽
20
0
2.4
1.6
~
2.4
10
∽
15
5.0
150
~
250
2.4
~
3.2
2.4
~
3.2
10
∽
15
6.0
200
~
280
2.4
~
3.2
2.4
~
3.2
10
∽
15
8.0
250
~
300
3.2
~
4.0
3.2
~
4.0
12
∽
18
6. Guideline Table for MMA welding
Electrode
diameter
(
mm
)
Welding current
range
(
A
)
Welding Voltage
range
(
V
)
Thickness of the
work piece
(
mm
)
Φ1.6
44~84
21.8~23.4
1.5~2.0
Φ2.0
60~100
22.4~24.0
2
Φ2.5
80~120
23.2~24.8
2.5~3.0
Φ3.2
110~130
24.4~25.2
3~4.5
Φ4.0
160~210
26.4~28.4
5~8
Φ
5.0
200~270
28.0~30.8
6~15