SURFACE-COVERED CUBIC BORON NITRIDE SINTERED BODY TOOL AND METHOD OF MANUFACTURING THE SAME
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app pub date -
Jul 5, 2011
filing date -
Apr 30, 2004
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Abstract
A surface-covered CBN sintered body tool includes a base material formed with a cubic boron nitride (CBN) sintered body and a surface covering film covering a surface of the base material, and has a nega-land exposing the CBN sintered body in at least a portion thereof and a flank having the surface covering film formed thereon. With this, the surface-covered CBN sintered body tool having high defect resistance and wear resistance can be provided. The surface covering film preferably includes a nitride or a carbonitride of a compound including at least one element selected from the group consisting of Ti, Cr, Zr, and V and at least one element selected from the group consisting of Al, Si and B, or a nitride or a carbonitride of Ti.
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