Method of and apparatus for forging metal

Details Method of and apparatus for forging metal Method of and apparatus for forging metal

1979-09-10

1981-09-29

Larson, Lowell A.

Metal deforming

With temperature modification of tool or of specified...

Cooling

291568B, 2940221, B21K 304

Patent

active

042915660

ABSTRACT:
A worn titanium blade for a gas turbine engine has metal displaced at its aerofoil tip, so that the aerofoil can be dressed to restore it to length. The titanium is not amenable to cold forging, or to being entirely heated, a forge is therefore provided which has dies which contact only the immediate area containing the metal to be displaced. The dies are heatable so as to heat the said area by conduction and powered so as to apply suitable pressure in a way which brings about isothermal displacement of the titanium.

REFERENCES:
patent: 2741469 (1956-04-01), Wallerus
patent: 2760543 (1956-08-01), Wood
patent: 3461709 (1969-08-01), McMillen
patent: 4095451 (1978-06-01), Watton

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