Powder metallurgy processes – Forming articles by uniting randomly associated metal particles – Consolidation of powders
Patent
1994-02-02
1996-11-12
Walsh, Donald P.
Powder metallurgy processes
Forming articles by uniting randomly associated metal particles
Consolidation of powders
419 5, 419 6, 419 10, 419 19, 419 20, 419 36, 419 41, B22F 702
Patent
active
055749577
ABSTRACT:
An improved method is disclosed for encasing an object in a shell or layer of outer material. The encased object and the outer material are formed from sinterable metal or ceramic particulate material. Both the object to be encased and the shell or encasement are formed by extrusion. Novel methods are disclosed by which the object and the outer material can be simultaneously formed by co-extruding the sinterable particulate materials, or by extruding the outer layer onto a formed object using the die assembly of the invention.
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Barnard John M.
Johnson Ronald E.
Wexell Kathleen A.
Corning Incorporated
Greaves John N.
Schaeberle Timothy M.
Walsh Donald P.
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