Integrally bladed disks or drums

Details Integrally bladed disks or drums Integrally bladed disks or drums

1994-12-02

1996-09-17

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

416234, 2988923, F01D 514

Patent

active

055562574

ABSTRACT:
A method of making an integrally bladed disc for a gas turbine engine, the disc having at least one blade the radially outermost surface of which is coated with a material harder than that of the blade, the method comprising the steps of: providing a forged disk blank of a first material; friction surfacing at least part of the circumference of the blank with a second material harder than the first material; and machining the blank so as to provide an integrally balded disc wherein the radially outermost surface of at least one blade is coated with said second material.

REFERENCES:
patent: 3730644 (1973-05-01), Jubb
patent: 3885294 (1975-05-01), Chaundy et al.
patent: 4436485 (1984-03-01), Vonnegut
patent: 4479293 (1984-10-01), Miller et al.
patent: 4536932 (1985-08-01), Athey
patent: 4581300 (1986-04-01), Hoppin, III et al.
patent: 4610698 (1986-09-01), Eaton et al.
patent: 4659288 (1987-04-01), Clark et al.
patent: 4851188 (1989-07-01), Schaefer et al.
patent: 4884820 (1989-12-01), Jackson et al.
patent: 5059095 (1991-10-01), Kushner et al.

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