OTC DP-400 - Both Side Welding Conditions of (Semi-Automatic); Example Welding Conditions of Downward Welding; Example Welding Conditions of Upward Welding

No. P10355
 |25|
9. WELDING PREPARATION (continued)
(2) Example Welding Conditions of Downward Welding
Plate
thickness
t(in [mm])
Shape of
joint weld
Welding
current
(A)
Welding
voltage
(V)
Welding
speed
(ft [cm]/min)
Remarks
0.091 [2.3] butt 100 22-23 2.3 [70] Back bead appearance is good.
0.126 [3.2] fillet 100 21-22 2.3 [70]
Leg length: 0.157-0.197in
[4 - 5mm],
Throat depth: 0.098in [2.5mm]
(3) Example Welding Conditions of Upward Welding
Plate
thickness
t (in [mm])
Shape of joint weld
Welding
current
(A)
Welding
voltage
(V)
Remarks
0.472
[12]
100-110 20-21
Weaving
Leg length: 0.394in
[10.0mm]
(4) Both Side Welding Conditions of (Semi-automatic)
Plate
thickness
(in [mm])
Groove shape
Number of
layers
Welding
current
(A)
Welding
voltage
(V)
Welding
speed
(ft [cm]/min)
0.236
[6.0]
1
2
170
180
25-26
26-27
1.0 [30]
1.0 [30]
0.354
[9.0]
1
2
270
290
29-30
30-31
1.0 [30]
1.0 [30]
0.472
[12.0]
1
2
280
330
30-31
33-34
1.3 [40]
1.3 [40]
0.748
[19.0]
Front 1
Front 2
Rear 1
Rear 2
300
300
340
280
31-32
31-32
32-33
30-31
1.5 [45]
1.5 [45]
1.5 [45]
1.5 [45]
0.984
[25.0]
Front 1
Front 2
Front 3
Rear 1
Rear 2
Rear 3
300
320
320
340
320
320
31-32
32-33
32-33
32-33
32-33
32-33
1.5 [45]
1.5 [45]
1.5 [45]
1.5 [45]
1.5 [45]
1.5 [45]
Stop at both ends