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Parameter for Aluminum and its Alloy TIG Welding (for reference only)
Plate
Slope
Welding
thickness
shape
Layers
(mm)
1.5
I-Shape
d
2
3
4
5
Y-Shap
8
ed
10
12
16
20
16~20
Double
22~25
Y-Shap
ed
The phenomena following listed possibly occur due to the factors, such as spare
parts, input gas, environment, and power supply. Thus necessary measures should
be taken to avoid the following listed occurrences
-Black Welding Point
The occurrence of black welding point should possibly occur due the failure of
protective gas output. The failure of protective gas output may be due to the
following factors: sufficiency of gas pressure, impurity of gas source, and
ventilation condition.
Compensate the gas output failure.
-Difficult in Arc-starting and to halt frequently
In case of unqualified tungsten, the performance of electricity releasing is
affected.
With the un-peaked tungsten terminal, it is difficult in arc starting and unstable
of current output.
-Unstable Welding Current during the welding operation.
The possible causation may include the unstable input voltage and the
disturbance of electromagnetic noise of other electric equipment
Tungsten
Diameter
(mm)
1/0
2
1/0
2~3
1/0
3
1~2/1
4
1~2/1
4
2/1
5
3~4/1~2
5
3~4/1~2
5~6
4~5/1~2
6
4~5/1~2
6
2~3/2~3
6
2~3/2~3
6~7
PROBLEMS POSSIBLY OCCUR
Wire
Pre-Tempe
Diameter
rature (C)
(mm)
1.6~2.0
-
2~2.5
-
2~3
-
3
-
3~4
-
4~5
100
4~5
100~150
4~5
150~200
5~6
200~220
5~6
200~260
5~6
200~260
5~6
200~260
Welding
Gas
Nozzle
Current
Volume
Diamet
(L/min)
er
50~80
7~9
50~80
8~12
8~12
150~180
8~12
180~200
10~15
8~12
180~240
10~15
8~12
260~320
16~20
10~12
280~340
16~20
14~16
300~360
18~22
14~16
340~380
20~24
16€20
360~400
25~30
20~22
300~380
25~30
16~20
360~400
30~35
20~22
8
8
12
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