Method of making an airfoil member for a gas turbine engine

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator

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Details

295276, 164 98, 164112, B23P 1502, B23P 1300

Patent

active

044222297

ABSTRACT:
An aerofoil member such as a blade or vane for a gas turbine engine comprises a hollow aerofoil with a plug of porous material filling a region of the hollow interior. The porous material forms at least part of the external surface of the aerofoil so that cooling fluid can flow from the interior of the aerofoil through the plug to the external surface of the aerofoil. The plug is preferably at the leading or trailing edge of the aerofoil. Methods of making the member include investment casting using a porous ceramic core to form the porous plug, or using sintered particulate material to form the porous plug.

REFERENCES:
patent: 2679669 (1954-06-01), Kempe
patent: 2687278 (1954-08-01), Smith et al.
patent: 3596703 (1971-08-01), Bishop et al.
patent: 3756303 (1973-09-01), Valdo
patent: 3854195 (1974-12-01), Landig
patent: 4384607 (1983-05-01), Wood et al.

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