Gear cutting – milling – or planing – Broaching – Means for cutting groove
Reexamination Certificate
2006-06-06
2008-12-16
Ross, Dana (Department: 3726)
Gear cutting, milling, or planing
Broaching
Means for cutting groove
C409S244000, C409S260000, C409S269000, C409S059000
Reexamination Certificate
active
07465134
ABSTRACT:
The apparatus of the present invention provides a broaching machine configured to produce an internal gear member. The broaching machine includes a broaching tool defining a central axis. The broaching tool includes a first set of broaching teeth configured to cut only a first flank portion of a plurality of gear teeth; and a second set of broaching teeth configured to cut only a second flank portion of the plurality of gear teeth. The plurality of gear teeth are formed such that the first and second flank portions of each gear tooth are tapered between a first end portion and a second end portion. The broaching machine also includes a motor configured to rotate the broaching tool about the central axis at a selectable rate and in a selectable direction. A corresponding method for producing an internal gear member is also provided.
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GM Global Technology Operations Inc.
Ross Dana
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