Method for powder metallurgy compacting

Details Method for powder metallurgy compacting Method for powder metallurgy compacting

1974-10-04

1976-02-17

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Mica particles

264102, 264317, 264334, 264338, 72258, 294205, 29423, B22F 302

Patent

active

039392414

ABSTRACT:
A method for hot isostatically compacting powder metallurgy charges in sealed metal containers wherein the container may be easily removed from the charge after compacting by providing a separating medium between the container interior and the powder metallurgy charge to prevent bonding during subsequent hot isostatic compacting, and producing during hot isostatic compacting a residual stress in said container; slitting of the container after compacting releases the residual stresses and in the absence of bonding to the compact causes the container to move away from the compact, thereby avoiding typical container-removal operations such as machining and pickling.

REFERENCES:
patent: 1081618 (1913-12-01), Madden
patent: 2298908 (1942-10-01), Wentworth
patent: 3200442 (1965-08-01), Haller
patent: 3671230 (1972-06-01), Smythe et al.

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