Method for making a double-wall airfoil

Details Method for making a double-wall airfoil Method for making a double-wall airfoil

1995-01-03

1997-06-24

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

295274, 295276, 164 46, 118427, B23P 1500

Patent

active

056407670

ABSTRACT:
A method for making double-wall airfoil for applications such as the blades and vanes of gas turbine engines by depositing an airfoil skin over an inner support wall which is separately formed and contains channels filled by a channel filling means. The channel filling means is removed thereby forming integral channels within the double-wall for circulating a cooling gas adjacent to the airfoil skin. The airfoil skin deposited may be a metal alloy skin or a microlaminate structure, including microlaminate composite structures.

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patent: 5328331 (1994-07-01), Bunker et al.

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