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9.
WELDING PREPARATION (continued)
(2) Welding Condition of DC TIG Pulse
ٟ
Flat position and butt joint welding
Material Joint
Geometry
Gap G
(mm)
Pulse Condition
Travel
speed
(cm/min)
Wire
Feeding
Speed
(cm/min)
Pulse
Current
(A)
Base
Current
(A)
Frequency
(Hz)
Pulse
Width
(%)
Mild Steel
spcc
0
1.2
1.6
200
150
130
50
20
20
2.5
1.5
1
50
46
50
60
30
15
60
60
40
Stainless
Steel
SUS304
0
1.2
1.6
2.0
150
150
130
130
50
20
20
20
3.1
1
0.8
0.8
50
35
30
30
80
17
10
83
0
40
40
40
Copper
C1100P
0
1.2
1.6
280
280
280
50
50
30
3.1
2
1.5
50
50
42
80
50
25
0
75
75
Titanium
TP270
0 200
100
1
30 25
0
Shield gas : Argon (10 ℓ/min) Electrode : Thoriated Tungsten
䋨
3.2mm
㱢䋩
Filler Wire : 1.2mm
㱢
Arc Length : 2mm
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