INDEXABLE INSERT
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United States of America Patent
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N/A
Issued Date -
Sep 16, 2010
app pub date -
Oct 8, 2008
filing date -
Oct 15, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An indexable insert according to the present invention includes a substrate and a coating layer formed on the substrate, the coating layer is formed of a plurality of layers including at least a TiCN layer, at least one of the plurality of layers is provided with compressive residual stress, the TiCN layer is mainly composed of TiCN and has highest peak intensity in a (422) plane and second peak intensity in a (311) plane in X-ray diffraction, and a ratio of peak intensity I(422)/I(311) between peak intensity I(422) of the (422) plane and peak intensity I(311) of the (311) plane is not lower than 1.1 and not higher than 10.
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