Machining method of ceramic turbine rotor

U.S. Patent Number: 5339521

Abstract: A machining method of a ceramic turbine rotor having a hub portion integrally formed with a plurality of radial blades, the hub portion having a front end to be centered during a finishing process of the radial blades and a rear end coaxially connected to a metallic support shaft, which machining method includes the steps of grinding the front distal end of said hub portion to form a tapered surface thereon; engaging the tapered surface of said hub portion with a corresponding tapered surface of an attachment mounted on a spindle of a headstock or a tailstock; and finishing the radial blades of said rotor in a desired form.

Inventors: Kawase; Hiroyuki (Nagoya, JP)

Assignee: NGK Insulators, Ltd. (JP)

Application Number: 08/033,795

Issued: 1994-08-23

Expired: 2006-08-23

Classes: 29/889.23 ; 451/49

Field of search: 29/889.23 51/281R,281P,289R,326,327

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