PROTECTING AN ELEMENT FROM EXCESSIVE SURFACE WEAR BY LOCALIZED HARDENING
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United States of America Patent
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Issued Date -
Dec 31, 2009
app pub date -
Jun 19, 2009
filing date -
Jun 30, 2008
priority date (Note) -
Abandoned
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Abstract
A method of protecting an element from excessive surface wear is provided. In this method, a localized area of the element that will be subjected to excessive surface wear is exposed to induction heating for a period sufficient to heat the localized area to an elevated temperature at which the localized area undergoes austenitic transformation. The localized area is quenched, followed by tempering, and then cooling. A result of the method is a localized hardened area formed monolithically with the element and having a localized hardness that is greater than a base hardness of the element.
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