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9.
WELDING PREPARATION (continued)
Material Joint
geometry
No. of
Layer
Pulse condition
Travel
speed
(cm/min)
Filler wire
Pulse
Current
(A)
Base
Current
(A)
Pulse
Freq.
(Hz)
Pulse
Width
(%)
Feeding
Speed
(cm/min.)
Aluminum
1.0
1.5
1.5
1.5
3.2
3.0
6.0
70
80
90
85
170
170
220
25
40
25
25
25
25
25
1
1
1
1
1
1
1
50
50
50
50
50
50
50
1.6
1.6
1.6
1.2
1.2
1.6
1.6
75
95
75
95
290
170
250
㪍㪇㫦
6.0 180 25 1 50
1.6
250
3.2
6.0
170
220
25
25
1
1
50
50
1.2
1.6
290
270
㪐㪇㫦
3.0 120 25 1 50
1.6
60
(4) Post-Flow Time
Adjust to the proper post-flow time for the electrode diameter.
Electrode diameter (mm)
Post-Flow Time (s)
1.6
3 - 5
2.4
5 - 8
3.2
8 - 12
4.0
12 - 17
4.8
17 - 21
6.4
21 - 26