Gear cutting – milling – or planing – Broaching – With work immobilizer and means to activate work immobilizer...
Reexamination Certificate
2008-07-22
2008-07-22
Cadugan, Erica (Department: 3722)
Gear cutting, milling, or planing
Broaching
With work immobilizer and means to activate work immobilizer...
C409S279000, C409S278000, C409S287000, C409S277000, C408S082000
Reexamination Certificate
active
07402011
ABSTRACT:
A device for centering a work piece with respect to a centerline of a tool includes a radially-stationary component rigidly secured with respect to the tool such that the radially-stationary component and the tool are concentric. A biasing mechanism is biased away from the radially-stationary component to apply substantially equally-distributed radial force at a periphery of the work piece to thereby center the work piece with respect to the tool. A method of broaching a work piece having an inner and an outer diameter includes machining the outer diameter and then applying circumferentially-distributed radial force to the inner diameter or the outer diameter to thereby center the work piece with respect to a broach tool. After the applying step, the method includes broaching the inner diameter of the work piece using the broach tool.
REFERENCES:
patent: 1734787 (1929-11-01), Appleton
patent: 3836277 (1974-09-01), Brooks
patent: 3944379 (1976-03-01), Elrod
patent: 4932642 (1990-06-01), Salenbien et al.
patent: 6883358 (2005-04-01), Hauf
Doubler Stephen D.
Giuliani Robert P.
Lee Jeffrey R.
McGregor James W.
Thompson Travis M.
Cadugan Erica
GM Global Technology Operations Inc.
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