PROCESS FOR MANUFACTURING RING-SHAPED MEMBER
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United States of America Patent
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N/A
Issued Date -
Apr 8, 2010
app pub date -
Mar 12, 2007
filing date -
Mar 12, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of producing a ring-shaped member is provided in which a material loss is eliminated, the process cost can be reduced, and a ring-shaped member can be easily obtained from a pipe member by a small number of steps. The method includes steps of: inwardly projectingly shaping a flange portion 1c on an end portion of a metal-made pipe member 1; and cutting off the flange portion 1c from the pipe member 1, thereby obtaining a ring-shaped member 10.
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