Method for fabricating a rotor disc assembly

Details Method for fabricating a rotor disc assembly Method for fabricating a rotor disc assembly

1984-01-13

1986-07-29

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

2940206, 2940208, 29523, 29447, 72342, 72364, 2853824, 285905, 403277, 403273, B21K 300, B23P 1102, F16B 400

Patent

active

046024115

ABSTRACT:
A rotor disc structure is provided with a sleeve within an axial bore of a disc and mounted through a driving connection on a rotor shaft. Before being mounted on the shaft, the sleeve and bore have been plastically deformed such that the sleeve is subjected to compressive stresses. Plastic deformation is accomplished by inserting a plug, having a higher coefficient of thermal expansion than the disc and sleeve, into the heated sleeve and heating the assembled disc, sleeve and plug. The sleeve includes an eccentric turn which fits into a corresponding eccentric portion of the disc bore. Keying occurs at the sleeve-rotor interface to remove stress risers in the disc bore.

REFERENCES:
patent: 1873956 (1932-08-01), Dahlstrand
patent: 2825124 (1958-03-01), Nichols et al.
patent: 3220602 (1965-11-01), Ficker
patent: 3304052 (1967-02-01), Warner et al.
patent: 3383900 (1968-05-01), Van Hartesveldt
patent: 3822953 (1974-07-01), Adelizzi
patent: 4330236 (1982-05-01), LeBreton
patent: 4447944 (1984-05-01), Mohrman

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