Disk performance by co-extrusion

Details Disk performance by co-extrusion Disk performance by co-extrusion

1988-02-16

1989-07-04

Kyle, Deborah L.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

B23P 1700

Patent

active

H00006475

ABSTRACT:
A method for fabricating a gas turbine engine disk by co-extrusion is described which comprises the steps of preparing a cylindrical shaped preform billet having a central bore region of preselected radius r and comprising a first material, and a rim region surrounding the bore region to a radius R of the preform billet and comprising a second material, extruding the preform billet at preselected extrusion temperature through an extrusion die to form an extrusion product of preselected reduction, and removing the disk from the extrusion product.

REFERENCES:
patent: 3285786 (1966-11-01), Katz
patent: 3566741 (1971-03-01), Sliney
patent: 3657804 (1972-04-01), Krock et al.
patent: 3880606 (1975-04-01), Boltinghouse et al.
patent: 4110131 (1978-08-01), Gessinger
patent: 4598856 (1986-07-01), Eguiguren et al.

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