METHOD OF INTRODUCING RESIDUAL COMPRESSIVE STRESSES INTO A SHAFT
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United States of America Patent
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Issued Date -
Jun 11, 2009
app pub date -
Feb 23, 2007
filing date -
Jun 6, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method of introducing compressive residual stresses into shaft notches of a shaft which is configured as a stepped shaft having successive stages having a different diameter. Diameter transitions or notch regions are located between each two adjacent stages. The diameter transitions or notch regions are quenched in a controlled manner as part of a heat treatment of the shaft.
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