Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1976-07-26
1977-10-04
Lanham, C.W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
228193, 416241B, 416213R, 416244A, B23P 1504
Patent
active
040515850
ABSTRACT:
A rotor for a gas turbine engine has a wrought superalloy disk with ceramic blades. The rotor is formed by placing ceramic blades in a fixture with their ceramic blade roots extending inwardly and between the upper and lower rims of a disk or disk halves. The facing upper and lower circumferential rims are cut away to provide for the ceramic blade roots. Said disk or disk halves being of a wrought superalloy having a fine grain size microstructure which can be placed in a superplastic condition. A compliant layer material is placed between the ceramic blade roots and the rims of the disk, and the disk and compliant layer are then heated so as to place the disk in a superplastic condition and pressed into intimate contact with the ceramic blade root, and if disk halves are being used, they are bonded together at inner mating surfaces. The rotor is then heat treated to return the disk to its normal condition of high strength and hardness. The compliant layer can be a thin layer of material inserted between the blade root and disk, or it can be a material applied directly to the blade root or disk slot such as by plating, sputtering, or flame spraying.
REFERENCES:
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patent: 3047936 (1962-08-01), Knowles
patent: 3055633 (1962-09-01), Pouit
patent: 3429700 (1969-02-01), Wiegand et al.
patent: 3519503 (1970-07-01), Moore et al.
patent: 3574924 (1971-04-01), Dibble
patent: 3787959 (1974-01-01), Moore et al.
Carruthers William D.
MacNitt, Jr. Donald G.
Walker Bryant H.
Crane Daniel C.
Lanham C.W.
McCarthy Jack N.
United Technologies Corporation
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