Method of fabricating expanded sandwich panels having an enclose

Details Method of fabricating expanded sandwich panels having an enclose Method of fabricating expanded sandwich panels having an enclose

1983-11-21

1986-03-25

Ramsey, Kenneth J.

Metal fusion bonding

Process

With shaping

156197, B23K 3100

Patent

active

045777985

ABSTRACT:
The invention concerns novel close-outs for sandwich structures and fabrication methods. The sandwich structures are formed by superplastic forming, accordion expansion, or a combination thereof. The close-out structure is formed from a plurality of flat sheets and members of predesigned shapes and sizes that are positioned in such a manner as to form high strength structures after unfolding and expansion. The corners of the close-out structure are either rounded or angled.

REFERENCES:
patent: 3011672 (1961-12-01), Vesak
patent: 3644158 (1972-02-01), Strumbos
patent: 4217397 (1980-08-01), Hayase et al.
patent: 4242161 (1980-12-01), Hulten et al.
patent: 4361262 (1982-11-01), Israeli

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