Method and apparatus for making a rotation-symmetrical gear member
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United States of America Patent
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Mar 22, 2005
Grant Date -
May 22, 2003
app pub date -
Nov 14, 2002
filing date -
Nov 16, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of making a rotation-symmetrical gear member, an outer edge of a circular blank is shaped to form a concentric thickened area which extends in axial direction to thereby realize a ring structure. A remaining area of the circular blank is then shaped into a cap-like structure through application of compressive forces by means of a pressure roller such that the ring structure adjoins a sidewall of the cap structure and projects outwardly in radial direction. The ring is then formed with outer teeth in opposition to the sidewall.
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