DIAMOND CUTTING TOOL AND PRODUCTION METHOD THEREFOR

There is provided a diamond cutting tool including a cutting edge portion containing single crystal diamond or binderless polycrystalline diamond and graphite, wherein when Raman spectroscopy is performed on a surface of the cutting edge portion, a ratio R1 of Ig1 to a sum of Id1 and the Ig1 is equa...

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Bibliographische Detailangaben
Hauptverfasser:	UEDA, Akihiko, WATANOBE, Naoki, KUKINO, Satoru
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR ARTIFICIAL STONE BORING CEMENTS CERAMICS CHEMISTRY COMBINED OPERATIONS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE CRYSTAL GROWTH INORGANIC CHEMISTRY LIME, MAGNESIA MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NON-METALLIC ELEMENTS OTHER WORKING OF METAL PERFORMING OPERATIONS PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL REFRACTORIES SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH SLAG TRANSPORTING TREATMENT OF NATURAL STONE TURNING UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL UNIVERSAL MACHINE TOOLS WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS
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Beschreibung
Zusammenfassung:	There is provided a diamond cutting tool including a cutting edge portion containing single crystal diamond or binderless polycrystalline diamond and graphite, wherein when Raman spectroscopy is performed on a surface of the cutting edge portion, a ratio R1 of Ig1 to a sum of Id1 and the Ig1 is equal to or more than 0.5 and equal to or less than 1, where the Id1 represents a peak intensity of first carbon in the surface, the Ig1 represents a peak intensity of second carbon in the surface, the first carbon represents carbon that forms the single crystal diamond or the binderless polycrystalline diamond, and the second carbon represents carbon that forms the graphite, and when Raman spectroscopy is performed on a plane located at a depth of 1 µm from the surface, a ratio R2 of Ig2 to a sum of Id2 and the Ig2 is equal to or more than 0.01 and equal to or less than 0.3, where the Id2 represents a peak intensity of the first carbon in the plane located at the depth of 1 µm from the surface, and the Ig2 represents a peak intensity of the second carbon in the plane located at the depth of 1 µm from the surface.