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SURFACE-COATED CUBIC BORON NITRIDE SINTERED COMPACT TOOL

MAEKAWA TAKUYA / TAKAHASHI MASAKUNI / SATO SHUN / YUMOTO KENJI

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, TiB 2 , Al 2 O 3 , and cBN. The A layer has a composition of (Ti 1-x Al x )N (0.4¤x¤0.7 in terms of atomic ratio). The B layer has a composition of (Cr 1-y-z Al y M z )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.

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SURFACE-COATED CUBIC BORON NITRIDE SINTERED COMPACT TOOL

MAEKAWA TAKUYA / TAKAHASHI MASAKUNI / SATO SHUN / YUMOTO KENJI

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, TiB 2 , Al 2 O 3 , and cBN. The A layer has a composition of (Ti 1-x Al x )N (0.4¤x¤0.7 in terms of atomic ratio). The B layer has a composition of (Cr 1-y-z Al y M z )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 COMPACT TOOL

MAEKAWA TAKUYA / TAKAHASHI MASAKUNI / SATO SHUN / YUMOTO KENJI

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, TiB 2 , Al 2 O 3 , and cBN. The A layer has a composition of (Ti 1-x Al x )N (0.4¤x¤0.7 in terms of atomic ratio). The B layer has a composition of (Cr 1-y-z Al y M z )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.

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Titel:

SURFACE-COATED CUBIC BORON NITRIDE SINTERED COMPACT TOOL

Weitere Titelangaben:

OBERFLÄCHENBESCHICHTETES KUBISCHES BORNITRID-SINTERKOMPAKTWERKZEUG
OUTIL COMPACT FRITTÉ EN NITRURE DE BORE CUBIQUE À SURFACE REVÊTUE

Beteiligte:

MAEKAWA TAKUYA (Autor:in) / TAKAHASHI MASAKUNI (Autor:in) / SATO SHUN (Autor:in) / YUMOTO KENJI (Autor:in)

Erscheinungsdatum:

28.06.2023

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: B23B Drehen , TURNING / B23C Fräsen , MILLING / C04B Kalk , LIME / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL

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