Method of making a clutch rotor for an electromagnetic clutch
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United States of America Patent
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-
Jan 14, 1986
Issued Date -
N/A
app pub date -
Jul 27, 1983
filing date -
Jul 30, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of making a clutch rotor for use in an electromagnetic clutch according to this invention includes the steps of forming a cup-shaped blank with a generally cylindrical annular flange wall; applying an outward transaxial force to the annular flange wall of the cup-shaped blank to form an annular outward bulge in the flange wall forming at least one inwardly projecting approximately V-shaped groove in the annular bulge by a press operation; applying a roller working operation to the approximately V-shaped groove to form the final V-shaped groove; and welding an inner cylindrical member to the bottom plate at its radial inner end surface.
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