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CUTTING TOOL MADE FROM CUBIC BORON NITRIDE-BASED SINTERED MATERIAL
A cBN tool that exhibits: excellent chipping resistance and wear resistance; and excellent cutting performance, for a long term use even in intermittent cutting work on high hardened steel is provided. The cutting tool includes a cutting tool body that is a cubic boron nitride-based material containing cubic boron nitride particles as a hard phase component. In the cutting tool, the cubic boron nitride particles includes an Al 2 O 3 layer with an average layer thickness of 1.0-10 nm on a surface of the cubic boron nitride particles, a rift with an average rift formation ratio of 0.02-0.20 being formed in the Al 2 O 3 layer, and the cubic boron nitride-based sintered material includes a binding phase containing at least one selected from a group consisting of: titanium nitride; titanium carbide; titanium carbonitride; titanium boride; aluminum nitride; aluminum oxide; inevitable products; and mutual solid solution thereof, around the cubic boron nitride particles.
CUTTING TOOL MADE FROM CUBIC BORON NITRIDE-BASED SINTERED MATERIAL
A cBN tool that exhibits: excellent chipping resistance and wear resistance; and excellent cutting performance, for a long term use even in intermittent cutting work on high hardened steel is provided. The cutting tool includes a cutting tool body that is a cubic boron nitride-based material containing cubic boron nitride particles as a hard phase component. In the cutting tool, the cubic boron nitride particles includes an Al 2 O 3 layer with an average layer thickness of 1.0-10 nm on a surface of the cubic boron nitride particles, a rift with an average rift formation ratio of 0.02-0.20 being formed in the Al 2 O 3 layer, and the cubic boron nitride-based sintered material includes a binding phase containing at least one selected from a group consisting of: titanium nitride; titanium carbide; titanium carbonitride; titanium boride; aluminum nitride; aluminum oxide; inevitable products; and mutual solid solution thereof, around the cubic boron nitride particles.
CUTTING TOOL MADE FROM CUBIC BORON NITRIDE-BASED SINTERED MATERIAL
SCHNEIDWERKZEUG AUS EINEM SINTERMATERIAL AUF DER BASIS VON KUBISCHEM BORNITRID
OUTIL DE DÉCOUPE FABRIQUÉ À PARTIR D'UN MATÉRIAU FRITTÉ À BASE DE NITRURE DE BORE CUBIQUE
MIYASHITA YOSUKE (author) / YANO MASAHIRO (author) / OHASHI TADAKAZU (author)
2020-10-14
Patent
Electronic Resource
English
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Cutting tool made of cubic boron nitride-based sintered material
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Cutting tool made of cubic boron nitride-based sintered material
| European Patent Office | 2017