Metal fusion bonding – Process – With shaping
Patent
1992-07-29
1994-06-28
Heinrich, Samuel M.
Metal fusion bonding
Process
With shaping
228184, 228190, 220501, 220581, B23K 2000, B23K 3100, B23K10112
Patent
active
053239539
ABSTRACT:
A compressed gas storage tank comprises a multi-layer sheet metal sandwich structure with a predetermined pattern of solid state diffusion bonds between all the neighburing layers. After the sheets have been solid state diffusion bonded together in the flat condition, the tank is blow formed between dies under superplastic forming conditions to produce at least one superplastically expanded core layer for containing the compressed gas. The configuration of the core layer is determined by the diffusion bond pattern. The expanded core layer provided internal bracing for the tank to give in rigidity and enable it to withstand the high internal pressures.
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Machine Moderne No. 858, Sep. 1981, Paris FR pp. 87-89 Formage super-plastique: feu vert pour les alliages de titane p. 87, translation enclosed.
Adderley Colin I.
Banks Simon A.
Boardman James E.
Fowler John O.
Heinrich Samuel M.
Rolls-Royce and Associated Ltd.
Rolls-Royce plc
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