Daihen OTC Welbee Inverter W400, Owner'S Manual

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10-7
Chapter 10 Reference Materials
M
ATERIALS FOR
S
ETTING
W
ELDING
C
ONDITIONS
R
EFERENCE
M
ATERIALS
C
HAPTER
10
10.3 Materials for Setting Welding Conditions
This section provides reference information for setting the welding conditions.
10.3.1 Guide for changing welding conditions
This section gives examples of the problems that can occur due to improper welding conditions.
10.3.2 Samples of welding condition settings
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.
10.3.2.1 Example of MAG short arc welding
Material: Mild steel
Gas: Ar + CO
2 -
mixed gas (10 to 15 L/min)
10.3.2.2 Example for welding conditions of pulse MAG
Example for 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.
Joint shape
Plate thickness
t(mm)
Wire diameter
(mm Φ )
Gap
(mm)
Current
(A)
Voltage
(V)
Travel speed
(cm/min)
Butt joint
1.0 0.8 to 1.0 0 50 to 55 13 to 15 40 to 55
1.2 0.8 to 1.0 0 60 to 70 14 to 16 30 to 50
1.6 0.8 to 1.0 0 100 to 110 16 to 17 40 to 60
2.3 0.9 to 1.2 0 to 1.0 110 to 120 17 to 18 30 to 40
3.2 0.9 to 1.2 1.0 to 1.5 120 to 140 17 to 19 25 to 30
4.0 0.9 to 1.2 1.5 to 2.0 150 to 170 18 to 21 25 to 40