Hollow blade for a turbomachine and method of manufacturing said

Details Hollow blade for a turbomachine and method of manufacturing said Hollow blade for a turbomachine and method of manufacturing said

1993-08-26

1994-09-06

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

416233, B23P 1500

Patent

active

053436199

ABSTRACT:
A hollow blade for a turbomachine comprises a unitary body having a multiplicity of transverse cavities in at least the airfoil shaped portion of the blade, and plugs disposed within the cavities and restoring the surface continuity of the intrados and extrados faces of the aerofoil shaped portion, the plugs being rigidly secured to the unitary body, such as by welding.

REFERENCES:
patent: 3626568 (1971-12-01), Silverstein et al.
patent: 3810286 (1974-05-01), Kaufman, Sr.
patent: 4971521 (1990-11-01), Atanashi et al.
patent: 5099573 (1992-03-01), Krauss et al.
patent: 5243758 (1993-09-01), LeMonds et al.

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