Coated cutting insert for milling applications
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United States of America Patent
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Jun 5, 2012
Grant Date -
Jan 12, 2012
app pub date -
Sep 16, 2011
filing date -
Sep 13, 2007
priority date (Note) -
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Abstract
Coated cemented carbide inserts are particularly useful for wet or dry milling steels. The inserts are formed by a cemented carbide body including WC, NbC and a W-alloyed Co binder phase, and a coating including an innermost layer of TiCxNyOz, with equiaxed grains, a layer of TiCxNyOz with columnar grains and a layer of α-Al2O3.
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