143
Chapter 10
Reference Materials
M
ATERIALS
FOR
S
ETTING
W
ELDING
C
ONDITIONS
R
EFERENCE
M
ATERIALS
C
HAPTER
10
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This section provides reference information for setting the welding conditions.
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This section gives examples of the problems that can occur due to improper welding conditions.
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This section provides samples of common welding condition settings.
The values are for reference purpose. Adjust them according to the shape of actual weld zone and position of welding.
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Example of welding conditions of horizontal fillet
Problem
Symptom
The wire feeding length is too long.
•
The arc length becomes long.
•
The bead width becomes wide.
•
Shielding becomes poor.
The wire feeding length is too short.
•
The arc length becomes short.
•
Spatter is generated.
The welding voltage is too high.
•
The arc length becomes long.
•
The bead width becomes wide.
•
Penetration and bead become small.
The welding voltage is too low.
•
The wire contacts the base metal and spatter is generated.
•
The bead width becomes narrow.
The welding current is too high.
•
The bead width becomes wide.
•
Penetration and bead become large.
The travel speed is too high.
•
The bead width becomes narrow.
•
Penetration and bead become small.
Plate thickness
t [in. (mm)]
Leg length
L [in. (mm)]
Wire diameter
[in. (mm)
ƕ
]
Current
(A)
Voltage
(V)
Travel speed
[IPM (cm/min)]
CO
2
-
gas flow rate
[CFH (L/min)]
18 ga. (1.2)
3/32 to 1/8
(2.5 to 3.0)
035, .040
(0.9, 1.0)
70 to 100
18 to 19
20 to 24
(50 to 60)
21 to 32
(10 to 15)
16 ga. (1.6)
3/32 to 1/8
(2.5 to 3.0)
.035 to .045
(0.9 to 1.2)
90 to 120
18 to 20
20 to 24
(50 to 60)
21 to 32
(10 to 15)
14 ga. (2.0)
1/8 to 9/64
(3.0 to 3.5)
.035 to .045
(0.9 to 1.2)
100 to 130
19 to 20
20 to 24
(50 to 60)
32 to 42
(15 to 20)
12 ga. (2.3)
1/8 to 9/64
(3.0 to 3.5)
.035 to .045
(0.9 to 1.2)
120 to 140
19 to 21
20 to 24
(50 to 60)
32 to 42
(15 to 20)
1/8 (3.2)
1/8 to 5/32
(3.0 to 4.0)
.035 to .045
(0.9 to 1.2)
130 to 170
19 to 21
18 to 22
(45 to 55)
32 to 42
(15 to 20)
11/64 (4.5)
5/32 to 11/64
(4.0 to 4.5)
.045 (1.2)
190 to 230
22 to 24
18 to 22
(45 to 55)
32 to 42
(15 to 20)
15/64 (6.0)
13/64 to 15/64
(5.0 to 6.0)
.045 (1.2)
250 to 280
26 to 29
16 to 20
(40 to 50)
32 to 42
(15 to 20)
23/64 (9.0)
15/64 to 9/32
(6.0 to 7.0)
.045 (1.2)
280 to 300
29 to 32
14 to 16
(35 to 40)
32 to 42
(15 to 20)
Содержание Welbee M350 II
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