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Fabricating Structural Stiffeners By Superplastic FormingSuperplastic forming (SPF) of aluminum alloys effective technique for making strong, lightweight structural components conforming to close dimensional tolerances. Technique applied in experimental fabrication of prototypes of stiffening ribs for cylindrical tanks. When making structural panel, stiffening ribs spot-welded to metal skin. Use of discrete eliminates machining waste, and use of SPF. Cost of fabrication reduced.
Document ID
19940000607
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bales, Thomas T.
(NASA Langley Research Center, Hampton, VA.)
Shinn, Joseph M., Jr.
(NASA Langley Research Center, Hampton, VA.)
Hales, Stephen J.
(Analytical Services and Materials, Inc.)
James, William F.
(Lockheed Engineering and Sciences Co.)
Date Acquired
August 16, 2013
Publication Date
November 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 11
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
LAR-14549
Accession Number
94B10607
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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