Method of manufacturing a sintered powder body

Details Method of manufacturing a sintered powder body Method of manufacturing a sintered powder body

1978-06-28

1982-07-13

Hun, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75226, B22F 300

Patent

active

043392717

ABSTRACT:
A shaped body is formed by cold-pressing a powdered material into a desired shape and then providing thereon a surface layer of a material having a lower melting point than the powder of the shaped body. The shaped body is then placed in a furnace connectable to vacuum equipment, wherein the pressure is first lowered to a value lower than atmospheric pressure and then the temperature is increased so that the material of the surface layer melts. Thereafter the body is isostatically hot-pressed under the direct influence of an inert, gaseous pressure medium, the powder particles being thus bound together to high density by pressure sintering.

REFERENCES:
patent: 3455682 (1969-07-01), Barbaras
patent: 3469976 (1969-09-01), Iler
patent: 3562371 (1971-02-01), Bush
patent: 4081272 (1978-03-01), Adlerborn
patent: 4104782 (1978-08-01), Veeck et al.

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