Metal deforming – By application of fluent medium – or energy field – Using fixed die
Patent
1993-10-01
1995-11-21
Jones, David
Metal deforming
By application of fluent medium, or energy field
Using fixed die
72709, B21D 2602
Patent
active
054676266
ABSTRACT:
A free standing, self-supporting ceramic superplastic forming die assembly having a configuration that provides sufficient strength to resist a compressive load exerted by a press to hold a die lid on a die body against an oppositely directed force generated by gas at superplastic forming pressures within the die, and provides sufficient tensile strength, when under pressure of compressive loads exerted by the press to resist internal bursting force exerted by gas at superplastic forming pressures within the die, thereby making possible the use of a ceramic die for superplastic forming applications without the need of a surrounding containment pressure vessel.
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Hammar John C.
Jones David
Neary J. Michael
The Boeing Company
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