CUTTING TOOL

CUTTING TOOL

A cutting tool according to this invention is a cutting tool including a base material and a coating formed on the base material. The base material is a sintered body containing 30 to 80 % by volume of cubic boron nitride, and a binder. The surface in contact with the coating, of the base material,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TSUKIHARA, NOZOMI, OKAMURA, KATSUMI, SETOYAMA, MAKOTO
Format: Patent
Sprache:eng ; pol
Schlagworte:
ARTIFICIAL STONE
BORING
BROACHING
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FILING
LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR
LIME, MAGNESIA
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
MILLING
PERFORMING OPERATIONS
PLANING
REFRACTORIES
SAWING
SCRAPING
SHEARING
SLAG
SLOTTING
THREAD CUTTING
TRANSPORTING
TREATMENT OF NATURAL STONE
TURNING
WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH
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Beschreibung
Zusammenfassung:A cutting tool according to this invention is a cutting tool including a base material and a coating formed on the base material. The base material is a sintered body containing 30 to 80 % by volume of cubic boron nitride, and a binder. The surface in contact with the coating, of the base material, has a plurality of convex portions made of the cubic boron nitride and a plurality of concave portions made of the binder. A surface roughness Rsub of the surface in contact with the base material, is 0.1 to 0.4 µm. A surface roughness Rsurf of an outermost surface of the coating is 0 to 0.15 µm. A surface roughness Rasurf of the outermost surface of the coating is 0 to 0.1 µm. The surface roughness Rsub of the surface in contact with the coating, of the base material, is greater than the surface roughness Rsurf of the outermost surface of the coating.