Method for prestressing turbine disks

Metal treatment – Compositions – Heat treating

Patent

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Details

148 14, C22F 100

Patent

active

041557808

ABSTRACT:
A method for adding a residual compressive stress to the rim of a turbine disk by heating the disk to a uniform high temperature, then insulating the rim from the remainder of the disk and cooling to a temperature wherein the rim yields in tension.

REFERENCES:
patent: 3558367 (1971-01-01), Eck

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