Stripper die and method of increasing the service life thereof
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United States of America Patent
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Mar 31, 1992
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N/A
app pub date -
Feb 25, 1991
filing date -
Aug 23, 1990
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Abstract
A stripping die having a cutting edge formed by the intersection of a truncated pyramid outer surface and an axial bore inner surface; such surfaces first being cut until the surface roughness thereof is less than 1 um., and then being coated with a high hardness, high wear resistant metallic compound having a uniformly thin thickness of between 1 and 10 um.
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