Pressure communication for superplastically formed, diffusion bo

Details Pressure communication for superplastically formed, diffusion bo Pressure communication for superplastically formed, diffusion bo

1996-09-27

1999-03-16

Sewell, Paul T.

Metal working

Method of mechanical manufacture

Structural member making

294211, 5278415, 72 61, 228190, B23P 1700, E04C 232, B21D 2210, B23K 3102

Patent

active

058814590

ABSTRACT:
The method of forming SPF/DB structures having reinforcement webs that are constructed by welding two or more sheets together along an interrupted seam and placing the core so formed between two face sheets, expanding the face sheets into a die by providing pressurized inert gas through one of the face sheets and through a pressure equalization hole drilled through a sealed area formed by the seam, and using pressurized inert gas to expand the core sheets into webs that extend between the face sheets.

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patent: 5323953 (1994-06-01), Adderley et al.
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patent: 5366787 (1994-11-01), Yasui et al.
patent: 5715644 (1998-02-01), Yasui
patent: 5723225 (1998-03-01), Yasui et al.

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