Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface-coated cubic boron nitride sintered material tool
The present invention is directed to a surface-coated cubic boron nitride sintered material tool including a cBN substrate and a hard coating layer formed on a surface of the cBN substrate and having an alternate laminated structure of A layer and B layer. The cBN substrate (sintered material) includes: a Ti compound, WC, AlN, TiB2, Al2O3, and cBN. The A layer has a composition of (Ti1-xAlx)N (0.4≤x≤0.7 in terms of atomic ratio). The B layer has a composition of (Cr1-y-zAlyMz)N (0.03≤y≤0.4 and 0≤z≤0.05 in terms of atomic ratio). A plastic deformation work ratio of the B layer is 0.35 to 0.50.
Surface-coated cubic boron nitride sintered material tool
The present invention is directed to a surface-coated cubic boron nitride sintered material tool including a cBN substrate and a hard coating layer formed on a surface of the cBN substrate and having an alternate laminated structure of A layer and B layer. The cBN substrate (sintered material) includes: a Ti compound, WC, AlN, TiB2, Al2O3, and cBN. The A layer has a composition of (Ti1-xAlx)N (0.4≤x≤0.7 in terms of atomic ratio). The B layer has a composition of (Cr1-y-zAlyMz)N (0.03≤y≤0.4 and 0≤z≤0.05 in terms of atomic ratio). A plastic deformation work ratio of the B layer is 0.35 to 0.50.
Surface-coated cubic boron nitride sintered material tool
MAEKAWA TAKUYA (Autor:in) / TAKAHASHI MASAKUNI (Autor:in) / SATO SHUN (Autor:in) / YUMOTO KENJI (Autor:in)
05.01.2021
Patent
Elektronische Ressource
Englisch
SURFACE-COATED CUBIC BORON NITRIDE SINTERED MATERIAL TOOL
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SURFACE-COATED CUBIC BORON NITRIDE SINTERED MATERIAL TOOL
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Surface-coated cubic boron nitride sintered material tool
| Europäisches Patentamt | 2020