NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Advances in Joining Techniques Used in Development of SPF/DB Titanium Sandwich Reinforced with Metal MatricesThree and four-sheet expanded titanium sandwich sheets have been developed at Douglas Aircraft Company, a division of McDonnell Douglas Corporation, under contract to NASA Langley Research Center. In these contracts, spot welding and roll seam welding are used to join the core sheets. These core sheets are expanded to the face sheets and diffusion bonded to form various type cells. The advantages of various cell shapes and the design parameters for optimizing the wing and fuselage concepts are discussed versus the complexity of the spot weld pattern. In addition, metal matrix composites of fibers in an aluminum matrix encapsulated in a titanium sheath are aluminum brazed successfully to the titanium sandwich face sheets. The strength and crack growth rate of the superplastic-formed/diffusion bonded (SPF/DB) titanium sandwich with and without the metal matrix composites are described.
Document ID
19860001780
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fischler, J. E.
(Douglas Aircraft Co., Inc. Long Beach, CA, United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1985
Publication Information
Publication: NASA. Langley Research Center Welding, Bonding and Fastening, 1984
Subject Category
Mechanical Engineering
Accession Number
86N11247
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available