Metal fusion bonding – Process – With shaping
Patent
1988-11-07
1989-12-26
Godici, Nicholas P.
Metal fusion bonding
Process
With shaping
228118, 228181, 228237, 228243, 228 151, 219 7802, 219 7811, 219 7812, 219385, 219440, B23K 2000
Patent
active
048892769
ABSTRACT:
A method and apparatus for forming and bonding metal assemblies using an internally heated chamber. The parts can be both superplastic formed and diffusion bonded to other parts. A closable chamber contains a heating element near the chamber center. A ceramic die at least partially surrounding the heating element has a forming surface toward the heating element. The inner wall of the chamber is lined with a pressure bladder. A granular material, conical ceramic support, or extensible bladder fills the space between ceramic die and chamber inner wall. With the chamber closed, the heater is activated while an inert gas under pressure is introduced between heater and die and the bladder if used is pressurized. The bladder or packed granules support the outer die surface while the gas pressure presses metal parts on the die forming surface against the die. The metal parts are formed and bonded together by the substantially isostatic forces thereon. The heat is concentrated on the parts, leaving the chamber walls cold. When forming is complete, the chamber interior is cooled and the die is removed and broken away from the formed assembly. Parts can be formed and bonded rapidly with a considerable energy saving over conventional isostatic pressing ovens.
REFERENCES:
patent: 3091845 (1963-06-01), Herman et al.
patent: 3465412 (1969-09-01), Hill
patent: 3651240 (1972-03-01), Kirkpatrick
patent: 4029254 (1977-06-01), Blair et al.
patent: 4087037 (1978-05-01), Schier et al.
patent: 4231507 (1980-11-01), Quinby
patent: 4392602 (1983-07-01), Darby
patent: 4691857 (1987-09-01), Friedman
Cadwell Gilbert C.
Phillips Paul M.
Gilliam Frank D.
Godici Nicholas P.
Heinrich Samuel M.
Rohr Industries, Inc.
Schlesinger Patrick J.
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