Electronic test identifies flawed units passing hardness tests. Eddy-current test detects weakness in head-to-shank junctions of 1/4-28 cup-washer lock bolts. Developed for alloy A286 steel bolts in Space Shuttle main engine fuel turbo-pump. Test examines full volume of head, including head-to-shank transition and nondestructively screens out potentially defective units. Test adapts to any other alloys.
Eddy-Current Detection of Weak Bolt Heads
NASA Tech Briefs ; 11 , 1
1987-01-01
Sonstige
Keine Angabe
Englisch
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