Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1983-09-12
1986-06-24
Crane, Daniel C.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
72469, B21D 1704, B21H 500
Patent
active
045961271
ABSTRACT:
In pressure forming splines or teeth in the axially-extending sleeve of a clutch hub having a cylindrical oil seal surface adjacent the sleeve, a pair of special tooth-forming racks adapted to intermesh with a toothed mandrel with the sleeve therebetween and a pair of special support racks adapted to contact the oil seal surface are used. Each tooth-forming rack includes a first working surface with a plurality of toothed sections interrupted and spaced apart by toothless sections in an alternating sequence and each further includes a second working surface with uninterrupted toothed sections. Each support rack includes a first working surface with raised support sections interrupted and spaced apart by lower non-supporting sections in a proper alternating sequence and configuration to insure that the raised sections support the oil seal surface when the interrupted toothed rack sections of the tooth-forming racks deform the sleeve. A second working surface of the support racks includes a raised support section similarly adapted to support the oil seal surface during initial contact of the uninterrupted rack teeth of the tooth-forming racks with the sleeve. A clutch hub is thereby manufactured having a splined sleeve roundness within 0.025 inch and oil seal surface roundness within 0.006 inch.
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Crane Daniel C.
Ex-Cell-O Corporation
Timmer Edward J.
LandOfFree
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