Small holes drilled along back edge of surface to be joined are filled when weld root is adequately fused. Holes 2% of thickness of material can be detected with X-rays. Absence of detectable holes indicates good weld. Procedure has been proven in production and is more reliable than conventional X-ray methods.
X-ray technique verifies weld-root fusion
NASA Tech Briefs ; 5 , 1
1980-08-01
Miscellaneous
No indication
English
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