Metal fusion bonding – Process – With shaping
Patent
1990-07-06
1991-03-26
Heinrich, Sam
Metal fusion bonding
Process
With shaping
228157, 228213, 228 443, B23K 2000
Patent
active
050022199
ABSTRACT:
A clamping method and apparatus for applying the necessary pressure to an sembly of metal parts during diffusion bonding and/or superplastic forming of the parts. Basically, the apparatus comprises a pair of opposed generally L-shaped frames having a cavity therebetween for holding the assembly of parts and associated shaping tooling. The frames are pivotable about a hinge connecting first ends, with a mechanism at the opposite ends for moving the frames together in a clamping manner or apart to allow access to the cavity. The tooling within the cavity typically includes a pressure vessel having a housing containing ceramic forming members having an internal volume within which metal parts to be shaped and/or bonded are placed. The parts are subjected to heat and pressure during processing. This apparatus and method are particularly suitable for manufacturing elongated metal products having a generally box-like cross section.
REFERENCES:
patent: 3737978 (1973-06-01), Rathbun
patent: 4426032 (1984-01-01), Leodolter
patent: 4429824 (1984-02-01), Woodward
patent: 4691857 (1987-09-01), Friedman
patent: 4889276 (1989-12-01), Cadwell et al.
Fendelman Harvey
Heinrich Sam
Keough Thomas G.
Lipovsky Peter A.
The United States of America as represented by the Secretary of
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