DEFECT WELD
(VISUAL)
UNDERFILL
Underfill
Because
1. Metal temperatures too low.
2. Ampère capping too low.
3. Dirty.
4. Swing not fix.
5. HIGH LOW.
Result
1. arise NOTCH Potentially crack.
2. Weaken connection weld.
3. Started rust the surface.
Countermeasures :
Grinding until defect missing, Welds repeated according WPS repair.
Rejection criteria :
If defect weld not repaired , the welds is rejected.
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