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Tuesday, September 2, 2014

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Porosity | Inclusions | Incomplete Fusion | Inadequate Penetration | Cracks

Incomplete Fusion
No. Defects Remedies

1.

Improper joint design

Increase included angle of groove joint. Change the groove design to a J or a U type.

2.

Presence of slag or oxide flim

Clean weld surfaces prior to welding

3.

Incorrect electrode position and operation current

Maintain proper electrode position and current

4.

Improper manipulation of arc

Use correct manipulation techniques to melt the joint faces properly.

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