Collet metal treating process
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United States of America Patent
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Sep 7, 1999
Issued Date -
N/A
app pub date -
Mar 16, 1998
filing date -
Mar 17, 1997
priority date (Note) -
Expired
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Abstract
A method of surface treating a metallic machine tool element includes heating the element prior to insertion of the metal element into a nitrating salt bath for the purpose of both hardening the element and improving the resilience of portions required to be flexed in use.
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