Method of making an aerofoil member for a gas turbine engine

Details Method of making an aerofoil member for a gas turbine engine Method of making an aerofoil member for a gas turbine engine

1981-07-13

1983-12-20

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164 34, 164516, B22C 904, B22C 900

Patent

active

044211538

ABSTRACT:
A blade or vane structure for a gas turbine engine comprises a hollow aerofoil member and a cooling air entry tube within the hollow aerofoil member, the aerofoil and the tube comprising a unitary cast structure. To make this structure it is proposed that a lost wax casting process should be utilized, with the internal cavities formed using ceramic cores formed with the aid of temporary, disposable pieces which define the space eventually occupied by the tube.

REFERENCES:
patent: 3056014 (1962-09-01), Hulley et al.
patent: 3094310 (1963-06-01), Bowmer
patent: 3627015 (1971-12-01), Giamei
patent: 3697192 (1972-10-01), Hayes
patent: 3742706 (1973-07-01), Klompas
patent: 3867068 (1975-02-01), Corsmeier et al.
patent: 3902820 (1975-09-01), Amos
patent: 4078598 (1978-03-01), Kelso et al.
patent: 4148350 (1979-04-01), Rossmann
patent: 4384607 (1983-05-01), Wood et al.

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