Hollow fan blade fabrication

Details Hollow fan blade fabrication Hollow fan blade fabrication

1994-04-29

1995-05-30

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

298897, 29463, B23P 1500

Patent

active

054190401

ABSTRACT:
Purge flow openings through chordwise ribs in hollow fan blades are formed by making partial circular cuts at the rib edges before diffusion bonding the blade halves. A full semi-circular section is used on the pressure side, but only a segment of a semicircular section is used on the suction side.

REFERENCES:
patent: 3628226 (1970-03-01), Nelson
patent: 3736638 (1973-06-01), Stone, Jr.
patent: 5063662 (1991-11-01), Porter et al.
patent: 5099573 (1992-03-01), Krauss et al.
patent: 5269058 (1993-12-01), Wiggs et al.

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