Integrally bladed rotor fabrication

Details Integrally bladed rotor fabrication Integrally bladed rotor fabrication

1990-09-14

1992-05-19

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

29889, 29428, 228193, 416213R, 416244R, B23P 1504

Patent

active

051135833

ABSTRACT:
A method is taught for the isostatic forging of integrally bladed rotors, in which deformable hollow single crystal blades are protected from deformation during diffusion bonding to the disk by encapsulation in a ceramic protective shell. The ceramic shell serves to occupy the areas between the blades and the surrounding forging die set, so that during application of high temperatures and pressures, damage to the blades is prevented without the use of complex segmented die assemblies.

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patent: 4568516 (1986-02-01), Adlerborn et al.
patent: 4680160 (1987-07-01), Helmink
patent: 4864706 (1989-09-01), Jenkel
patent: 4873751 (1989-10-01), Walker et al.

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