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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. A peak of the grain size distribution of cBN grains in the cBN sintered material is present within a range of a grain size from 0.50 to 1.00 μm. The A layer has a composition of (Ti1-xAlx)N (0.4≤x≤0.7 in an atomic ratio). The B layer has a composition of (Cr1-y-zAlyMz)N (0.03≤y≤0.6 and 0≤z≤0.05 in an atomic ratio). An X-ray diffraction peak of a (200) plane is present at a position of a diffraction angle of 43.6 plus or minus 0.1 degrees, and 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. A peak of the grain size distribution of cBN grains in the cBN sintered material is present within a range of a grain size from 0.50 to 1.00 μm. The A layer has a composition of (Ti1-xAlx)N (0.4≤x≤0.7 in an atomic ratio). The B layer has a composition of (Cr1-y-zAlyMz)N (0.03≤y≤0.6 and 0≤z≤0.05 in an atomic ratio). An X-ray diffraction peak of a (200) plane is present at a position of a diffraction angle of 43.6 plus or minus 0.1 degrees, and 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)
18.08.2020
Patent
Elektronische Ressource
Englisch
IPC:
B23B
Drehen
,
TURNING
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C04B
Kalk
,
LIME
/
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
SURFACE-COATED CUBIC BORON NITRIDE SINTERED MATERIAL TOOL
| Europäisches Patentamt | 2019
Surface-coated cubic boron nitride sintered material tool
| Europäisches Patentamt | 2021
SURFACE-COATED CUBIC BORON NITRIDE SINTERED MATERIAL TOOL
| Europäisches Patentamt | 2019