Method for Manufacturing Ring-Shaped Member
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United States of America Patent
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N/A
Issued Date -
Jun 25, 2009
app pub date -
Oct 11, 2006
filing date -
Oct 13, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The yield rate or the percentage of the weight of the ring-shaped member with respect to the weight of the raw material is improved to achieve the cost reduction of the ring-shaped member. A plurality of longitudinal annular blanks 3 is punched out from a raw material 2 of a predetermined width, and the longitudinal annular blank 3 is molded into an annular ring-shaped member 1.
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