Process for obtaining a bladed circular metallic article

Details Process for obtaining a bladed circular metallic article Process for obtaining a bladed circular metallic article

1995-08-24

1997-10-14

Nelson, Peter A.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 14, 419 38, 228189, B22F 100

Patent

active

056781644

ABSTRACT:
A process for constructing a circular metallic article which includes a hub and a plurality of vanes mounted on the periphery of the hub wherein the vanes are placed in position around the hub, formers are arranged between the blade portions of the vanes, a dimensionally stable belt having a low thermal expansion coefficient is placed circumferentially around the vanes and the formers, and the assembly is subjected to an isostatic compression at the isothermal forging temperature and pressure of the materials of the hub and the vanes such that the vanes are diffusion welded to the hub and the blade portions of the vanes are compressed to shape.

REFERENCES:
patent: 3940268 (1976-02-01), Catlin
patent: 4485961 (1984-12-01), Ekbom et al.
patent: 4680160 (1987-07-01), Helmink
patent: 5226982 (1993-07-01), Eylon

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