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8. Weld condition
8 1 . In case of improper welding conditions
Particle of spatter becomes bigger.
The length and height of weld penetration become smaller.
Wire sticks to the base metal and too many spatters. Bead width
The depth and height of weld penetration becomes bigger.
Particle of spatter becomes smaller.
The depth of weld penetration becomes bigger.
The length and height of weld penetration become smaller.
Particle of spatter becomes smaller the number of spatter
The depth and height of weld penetration becomes bigger.
8 2 . Clearance between base metal and tip
8 3 . Relation between weld current and voltage
Reason
Arc length is growing.
Bead width is widening.
becomes narrow.
Bead width is widening.
Bead width becomes narrow.
decreases.
Wire diameter (mm)
0.9 1.0
1.2
1.6
Clearance (mm)
10 15
15 20
25 30
14
Remedy
Arc voltage is too high.
Arc voltage is too low.
Welding current is too high.
Welding speed is fast.
Current density of wire is
high.
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