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Friday, May 24, 2013
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Porosity | Inclusions | Incomplete Fusion | Inadequate Penetration | Cracks
1.
Improper Joint preparation a) Excessively thick root face b) Insufficient root opening c) Bridging of root opening
Use proper joint geometry. Reduce root face height. Use wider root opening.
2.
Electrode diameter too large
Use smaller electrode in root.
3.
Inadequate current
Follow correct welding current and technique
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