Method of manufacturing turbine wheel disks with locally high in

Details Method of manufacturing turbine wheel disks with locally high in Method of manufacturing turbine wheel disks with locally high in

1988-03-16

1989-11-14

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

72342, 72364, 416244A, B23P 1504

Patent

active

048797936

ABSTRACT:
A method for manufacturing parts for rotary machines, especially turbine wheel disks, having a hub bore in a hub region, as well as turbine wheel disks manufactured by the method, includes pre-turning a contour at the hub region having a profile differing from a hub contour to be produced. At least the hub region is initially treated. At least the hub region having the pre-turned contour is cooled with a coolant fluid after the initial treatment to produce internal compressive strains in the hub region. The pre-turned contour is reduced after the cooling to the hub contour to be produced.

REFERENCES:
patent: 4602411 (1986-07-01), Brown

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