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Machining Thin-Walled Cylindrical PartsCylindrical walls only few thousandths of inch thick machined accurately and without tears or punctures with aid of beryllium copper mandrel. Chilled so it contracts, then inserted in cylinder. As comes to room temperature, mandrel expands and fits snugly inside cylinder. Will not allow part to slide and provides solid backup to prevent deflection when part machined by grinding wheel. When machining finished, cylinder-and-mandrel assembly inserted in dry ice, mandrel contracts and removed from part.
Document ID
19880000607
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Cimbak, Joe
(United Technologies Corp.)
Spagnolo, Jim
(United Technologies Corp.)
Kraus, Dan
(United Technologies Corp.)
Date Acquired
August 13, 2013
Publication Date
December 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 11
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MSC-21260
Accession Number
88B10607
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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