Face spline molding device, face spline molding method, outer joint member, and constant velocity universal joint
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United States of America Patent
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Apr 25, 2017
Grant Date -
Apr 10, 2014
app pub date -
May 23, 2012
filing date -
Jun 17, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An outer joint member for a constant velocity universal joint is formed by a face spline forming apparatus and a face spline forming method. The face spline forming apparatus includes a punch member having a tooth portion for forming a face spline, a pedestal having an end-surface receiving surface for receiving an opening end surface of a cup section, and a shaft member having an inner-surface receiving surface for receiving a bottom-wall inner surface of the cup section. The opening end surface and the bottom-wall inner surface are brought into a simultaneous pressure receiving state. In this state, the punch member performs a rocking motion to form the face spline in a bottom-wall back surface due to plastic deformation caused by the tooth portion of the punch member.
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