Vehicle wheel disk and a manufacturing method thereof
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United States of America Patent
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Dec 6, 2016
Grant Date -
Jan 1, 2015
app pub date -
Mar 11, 2013
filing date -
Mar 12, 2012
priority date (Note) -
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Abstract
A vehicle wheel disk and a manufacturing method thereof is provided. The vehicle wheel disk is manufactured from a disk material of a flat plate. The vehicle wheel disk includes a hub coupling portion, a disk flange and a hat. The hat includes a hat top protruding outwardly in an axial direction of the disk, a radially inner hat portion connecting the hat top and the hub coupling portion, and a radially outer hat portion connecting the hat top and the disk flange. In the vehicle wheel disk, a first thickness-reduced portion is smaller in thickness than the disk material that is formed at the radially outer hat portion.
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