Method of forming turbine blades with abradable tips

Details Method of forming turbine blades with abradable tips Method of forming turbine blades with abradable tips

1988-05-25

1989-08-08

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

427190, 4273981, B21K 304

Patent

active

048541966

ABSTRACT:
A method of embedding an oxidation resistant abrasive material in the tip of a turbine blade is taught. The oxidation resistant abrasive may be aluminum oxide. Its low density is increased by coating fine particles with platinum metal to achieve a density greater than that of the metal of the blade tip. The blade tip is then melted locally to provide a pool of melt into which the high density aluminum oxide can be inserted. Freezing the melt embeds the aluminum oxide in the blade tip.

REFERENCES:
patent: 3890456 (1975-06-01), Dils
patent: 4439470 (1984-03-01), Sievers
patent: 4608128 (1986-08-01), Farmer et al.
patent: 4741973 (1988-05-01), Condit et al.

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