SWEISS
WELD.COM
NOTES
joint
4.8
Butt joint
2.4
3.2
8
150 225
25
4.8
Corner
joint
3.2
3.2
9
175 250
20
Notice: the above parameters originate from Welding Dictionary P150, Volume 1 of Edition 2.
27
Parameters of AC TIG (MMA) for Aluminum and its alloy
Sheet
thickness
/mm
Welding
wire
diameter
/mm
Tungsten
electrode
diameter
/mm
Pre-
heat
Temper
-ature
/
℃
Welding
current
/A
Argon
flow
rate
/
L·min
-1
Gas
nozzle
diameter
/mm
Remark
1
1.6
2
45 60
7 9
8
Flange
welding
1.5
1.6 2.0
2
50 80
7 9
8
Flange or
butt welding
by one side
Parameters of piping back sealing welding for mild steel
（
DCEP
）
Piping
diameterΦ/mm
Tungsten
electrode
diameter/mm
Gas nozzle
diameter/mm
Welding wire
diameter/mm
Welding
current/A
Arc
voltage/V
Argon
flow
rate
/
L·min
-
1
Welding
rate
/
cm·min
-
1
38
2.0
8
2
75 90
11 13
6 8
4 5
42
2.0
8
2
75 95
11 13
6 8
4 5
60
2.0
8
2
75 100
11 13
7 9
4 5
76
2.5
8 10
2.5
80 105
14 16
8 10
4 5
108
2.5
8 10
2.5
90 110
14 16
9 11
5 6
133
2.5
8 10
2.5
90 115
14 16
10
12
5 6
159
2.5
8 10
2.5
95 120
14 16
11
13
5 6
219
2.5
8 10
2.5
100
120
14 16
12
14
5 6
273
2.5
8 10
2.5
110
125
14 16
12
14
5 6
325
2.5
8 10
2.5
120
140
14 16
12
14
5 6
Notice: the above parameters originate from Welding Dictionary P167, Volume 1 of Edition 2.
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