Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface-coated boron nitride sintered compact tool
In a surface-coated boron nitride sintered compact tool according to the present invention, at least a cutting blade portion includes a compound sintered compact and a coating layer provided on a surface of the compound sintered compact. The compound sintered compact includes cubic boron nitride particles and binder particles. The compound sintered compact includes the cubic boron nitride particles in a ratio of 45 vol% to 80 vol%. A first particle size distribution curve of the cubic boron nitride particles has one or more peaks in the particle diameter range of 0.1 [mu]m to 0.7 [mu]m. A second particle size distribution curve of the cubic boron nitride particles has a first peak having a maximum peak height in the particle diameter range of 2.0 [mu]m to 7.0 [mu]m. In the second particle size distribution curve, the integral value ratio (Io/It * 100) is 1 to 20, where Io represents the integral value in the particle diameter range of 0.1 [mu]m to 0.7 [mu]m, and It represents the integral value for the entire range.
Surface-coated boron nitride sintered compact tool
In a surface-coated boron nitride sintered compact tool according to the present invention, at least a cutting blade portion includes a compound sintered compact and a coating layer provided on a surface of the compound sintered compact. The compound sintered compact includes cubic boron nitride particles and binder particles. The compound sintered compact includes the cubic boron nitride particles in a ratio of 45 vol% to 80 vol%. A first particle size distribution curve of the cubic boron nitride particles has one or more peaks in the particle diameter range of 0.1 [mu]m to 0.7 [mu]m. A second particle size distribution curve of the cubic boron nitride particles has a first peak having a maximum peak height in the particle diameter range of 2.0 [mu]m to 7.0 [mu]m. In the second particle size distribution curve, the integral value ratio (Io/It * 100) is 1 to 20, where Io represents the integral value in the particle diameter range of 0.1 [mu]m to 0.7 [mu]m, and It represents the integral value for the entire range.
Surface-coated boron nitride sintered compact tool
MATSUDA YUSUKE (Autor:in) / OKAMURA KATSUMI (Autor:in) / SANO KENTA (Autor:in) / TSUKIHARA NOZOMI (Autor:in) / SETOYAMA MAKOTO (Autor:in)
17.02.2016
Patent
Elektronische Ressource
Englisch
COMPOSITE SINTERED COMPACT AND SURFACE-COATED BORON NITRIDE SINTERED COMPACT TOOL
| Europäisches Patentamt | 2016