Method for manufacturing turborotors such as gas turbine rotor w

Details Method for manufacturing turborotors such as gas turbine rotor w Method for manufacturing turborotors such as gas turbine rotor w

1979-08-06

1982-04-06

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75226, 75200, 75211, 416213R, 416215, 291568R, B22F 500, B22F 700

Patent

active

043233945

ABSTRACT:
A method for manufacturing turborotors such as gas turbine rotor wheels having blades of a ceramic material enables an improved rotor wheel to be produced by forming a blade-to-disk connection by sintering the roots of the blades in place within the rotor disk. According to one embodiment, premanufactured blades are joined to the rotor by sintering the entire rotor disk to the premanufactured blades, while in a second embodiment, premanufactured blades are joined to a premanufactured disk by a sintered connection. To compensate for different thermal expansions between the blade and the sintering material, a ductile material is applied to the blade roots before sintering. This ductile material is applied as a coating made of metallic powders, or as a metal felt.

REFERENCES:
patent: 3784320 (1974-01-01), Rossman
patent: 4063939 (1977-12-01), Weaver et al.
patent: 4096120 (1978-06-01), Grunke
patent: 4097276 (1978-06-01), Six
patent: 4214906 (1980-07-01), Langer et al.

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