Method of preparing a metal body by means of injection molding

Details Method of preparing a metal body by means of injection molding Method of preparing a metal body by means of injection molding

1990-08-10

1991-05-14

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75243, 419 11, 419 24, 419 36, 419 37, B22F 100

Patent

active

050152890

ABSTRACT:
A manufacturing method for a metal body by means of injection molding that comprises the steps of mixing and kneading a metal powder with short fibers such as metallic fibers, carbon fibers and an organic binder, injection-molding the kneaded mixture to form a green body, removing the organic binder from the green body, and sintering the brown body. The short fibers are added in an amount ranging from about 0.1 to 20 wt. % against 100 wt. % of the metal powder and have a melting point of at least 350.degree. C., and at the time of sintering the fibers not less than 30 vol. % become fused and then integrated with the metal. The short fibers act as a reinforcement, strengthening the brown body as well as preventing deformation and cracking of the green body during debinding.

REFERENCES:
patent: 4699763 (1987-10-01), Sinharoy et al.
patent: 4919719 (1990-04-01), Abe et al.
patent: 4921665 (1990-05-01), Klar et al.
patent: 4964907 (1990-10-01), Kiyota et al.

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