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Eddy-Current Detection of Weak Bolt HeadsElectronic 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.
Document ID
19870000023
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Messina, C. P.
(Rockwell International Corp.)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 1
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-29092
Accession Number
87B10023
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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