Method of manufacture of cooled turbine or compressor buckets

Details Method of manufacture of cooled turbine or compressor buckets Method of manufacture of cooled turbine or compressor buckets

1975-09-25

1977-05-17

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

416 96R, 416241R, B23P 1504

Patent

active

040232492

ABSTRACT:
Airfoil-shaped bucket cores having grooves recessed into the surfaces thereof must be covered with an outer layer to provide the requisite aerodynamic and wearing surface and to define the cooling passages. In order to apply this outer layer by flame spraying (or comparable method of particle deposition), the core surface is first covered with a substrate layer. This substrate layer is provided with means by which later-applied surface coating material will be anchored in place. Thereafter, the outer material is applied (as by flame spraying, for example) and the surface thereof is ground and polished to dimension as may be needed.

REFERENCES:
patent: 2641439 (1953-06-01), Williams
patent: 2648520 (1953-08-01), Schmitt
patent: 2993678 (1961-07-01), Schultz et al.
patent: 3068556 (1962-12-01), Kramer
patent: 3269856 (1966-08-01), Jones
patent: 3748110 (1973-07-01), Hodshire et al.
patent: 3841805 (1974-10-01), Zalis

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