Process and apparatus for chucking and machining an elongated cy

Details Process and apparatus for chucking and machining an elongated cy Process and apparatus for chucking and machining an elongated cy

1997-10-02

1999-04-13

Scherbel, David A.

Abrading

Abrading process

Roll, roller, shaft, ball, or piston abrading

451397, 82165, 82 45, 82106, B23B 522

Patent

active

058937935

ABSTRACT:
A process for chucking and machining an elongated cylindrical article made of a ceramic material according to the present invention, comprises the steps of: (1) chucking the elongated cylindrical ceramic article between chuck heads at longitudinally opposite end portions of said ceramic article; (2) holding the elongated cylindrical article between the chuck heads under such a low chucking pressure as allowing the ceramic article to slip inside a driven side chuck head while being kept inside the chuck heads at the opposite end portions, and slipping the ceramic article inside the chuck heads for a given time under rotation of a driving chuck head so that any positional deviation between the location of a center axis passing centers of of the chuck heads and an axis of the ceramic article may be removed due to a self aligning centrifugal action of the ceramic article; (3) raising the chucking pressure of the chuck heads to such a level as required for machining the ceramic article; and (4) then machining a surface of the ceramic article by a machining tool.

REFERENCES:
patent: 2195051 (1940-06-01), Wallace
patent: 3093942 (1963-06-01), Snyder
patent: 4141263 (1979-02-01), Leutgab
patent: 5230265 (1993-07-01), Schmid
patent: 5259156 (1993-11-01), Ronen
patent: 5337521 (1994-08-01), Heyl et al.
patent: 5339521 (1994-08-01), Kawase

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