Forging die apparatus
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United States of America Patent
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May 16, 2006
Issued Date -
N/A
app pub date -
May 14, 2003
filing date -
Dec 5, 1997
priority date (Note) -
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Abstract
A forging die apparatus comprises a punch for applying a pressurizing force to a forging material arranged in a cavity, a cylindrical member installed to surround a part of outer circumference of the punch, for making displacement integrally with the punch, and a first ring member formed with a hole for forcibly inserting the cylindrical member therein when the punch applied the pressurizing force to the forging material.
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