Fiber-composite turbine blade and method for its construction

Details Fiber-composite turbine blade and method for its construction Fiber-composite turbine blade and method for its construction

1983-11-25

1986-05-20

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291568R, 29419R, 295271, 29530, 29DIG29, 29DIG31, 416230, 416241R, 416229A, 419 8, 419 24, B21K 304, B27B 1504

Patent

active

045891761

ABSTRACT:
The present invention provides a method for constructing from fiber-composite material complex structures having two or more transversely disposed members. By way of example, a composite turbine blade 10 having an aerofoil 12 and an integrally formed footing 14 can be constructed using this new method, which method comprises the steps of forming from fiber-composite monotape a blank 40 in the general shape of aerofoil 12 with the fibers 18' of the monotape being oriented in a generally spanwise direction, exposing the fibers 18' at the root 42 of the aerofoil blank 40, inserting transversely between the exposed fibers 18' a plurality of foot-forming monotapes 17 to form a transversely meshed, tape and fiber structure 68, filling the voids in the transversely meshed structure with powdered matrix material and hot-pressing the filled-in structure 70 substantially according to the desired final shape of the fiber-composite turbine blade.

REFERENCES:
patent: 3255280 (1966-06-01), Burrowes
patent: 3632460 (1972-01-01), Palfreyman
patent: 3679324 (1972-07-01), Stargardter
patent: 3942231 (1976-03-01), Whitaker
patent: 4040770 (1977-08-01), Carlson
patent: 4111606 (1978-09-01), Prewo
patent: 4339229 (1982-07-01), Rossman
patent: 4363602 (1982-12-01), Martin
Winsa, E. A. NASA Technical Memorandum 82811, "Tungsten Fiber Reinforced Superalloy Composite High Temperature Component Design Consideration", Lewis Research Ctr., Cleveland, Ohio, Feb. 1982.

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