Aluminum alloy sheet for superplastic forming

Details Aluminum alloy sheet for superplastic forming Aluminum alloy sheet for superplastic forming

2006-08-29

2009-08-18

Speer, Timothy M (Department: 1794)

Stock material or miscellaneous articles

Composite

Of metal

C428S472000, C428S701000, C428S702000

Reexamination Certificate

active

07575811

ABSTRACT:
A hydrous oxide film is formed on the surface of a superplastic forming aluminum alloy sheet. The superplastic forming aluminum alloy sheet can be formed without applying a lubricant to a die, exhibits excellent releasability, and prevents scratches due to sliding between the die and the sheet.

REFERENCES:
patent: 3210184 (1965-10-01), Uhlig
patent: 4250727 (1981-02-01), Baril et al.
patent: 5059258 (1991-10-01), Wefers et al.
patent: 5819572 (1998-10-01), Krajewski
patent: 05-271954 (1993-10-01), None
patent: 08-187818 (1996-07-01), None
patent: 2000-054156 (2000-02-01), None

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