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    • 8. 发明专利
    • DE69431032T2
    • 2003-01-30
    • DE69431032
    • 1994-05-31
    • SUMITOMO ELECTRIC INDUSTRIES
    • UCHINO KATSUYANOMURA TOSHIOOHARA HISANORICHUDO MASUOKOBAYASHI MITSUNORI
    • C23C16/32C23C16/34C23C16/36C23C30/00C23C16/30B23B27/14B23P15/28
    • A coated cutting tool suitable for high speed cutting process and a method for producing the same, the tool comprising a base material formed of tungsten-carbide-based cemented carbide and a coating layer on the base material comprising in turn an internal layer and an external layer, wherein the internal layer consists of a single layer of titanium carbonitride in contact with the base material, a double layer consisting of a 0.1 to 2 mu m thick titanium nitride layer in contact with the base material and a titanium carbonitride layer directly thereon, and a multi-layer prepared by applying another coating of titanium carbide to the titanium carbonitride layer, the tool being characterized in that the chlorine content of the internal layer is 0.05 atomic % or less on average, the peak strength ratio of a specific plane falls within a specific range when the titanium carbonitride is X-ray diffracted, or the internal layer constituting the coating layer consists of a first layer of titanium nitride that contacts the base material and a second layer, placed on the first one, has a hardness ranging from 1600 to 2400 kg/mm . The realized coating has high wear-resistance, and the coating film and the base material are strongly bonded to each other, thereby providing superior peeling resistance during cutting.
    • 9. 发明专利
    • DE69431032D1
    • 2002-08-29
    • DE69431032
    • 1994-05-31
    • SUMITOMO ELECTRIC INDUSTRIES
    • UCHINO KATSUYANOMURA TOSHIOOHARA HISANORICHUDO MASUOKOBAYASHI MITSUNORI
    • C23C16/32C23C16/34C23C16/36C23C30/00C23C16/30B23B27/14B23P15/28
    • A coated cutting tool suitable for high speed cutting process and a method for producing the same, the tool comprising a base material formed of tungsten-carbide-based cemented carbide and a coating layer on the base material comprising in turn an internal layer and an external layer, wherein the internal layer consists of a single layer of titanium carbonitride in contact with the base material, a double layer consisting of a 0.1 to 2 mu m thick titanium nitride layer in contact with the base material and a titanium carbonitride layer directly thereon, and a multi-layer prepared by applying another coating of titanium carbide to the titanium carbonitride layer, the tool being characterized in that the chlorine content of the internal layer is 0.05 atomic % or less on average, the peak strength ratio of a specific plane falls within a specific range when the titanium carbonitride is X-ray diffracted, or the internal layer constituting the coating layer consists of a first layer of titanium nitride that contacts the base material and a second layer, placed on the first one, has a hardness ranging from 1600 to 2400 kg/mm . The realized coating has high wear-resistance, and the coating film and the base material are strongly bonded to each other, thereby providing superior peeling resistance during cutting.
    • 10. 发明专利
    • AT221142T
    • 2002-08-15
    • AT94916435
    • 1994-05-31
    • SUMITOMO ELECTRIC INDUSTRIES
    • UCHINO KATSUYANOMURA TOSHIOOHARA HISANORICHUDO MASUOKOBAYASHI MITSUNORI
    • C23C16/32C23C16/34C23C16/36C23C30/00C23C16/30B23B27/14B23P15/28
    • A coated cutting tool suitable for high speed cutting process and a method for producing the same, the tool comprising a base material formed of tungsten-carbide-based cemented carbide and a coating layer on the base material comprising in turn an internal layer and an external layer, wherein the internal layer consists of a single layer of titanium carbonitride in contact with the base material, a double layer consisting of a 0.1 to 2 mu m thick titanium nitride layer in contact with the base material and a titanium carbonitride layer directly thereon, and a multi-layer prepared by applying another coating of titanium carbide to the titanium carbonitride layer, the tool being characterized in that the chlorine content of the internal layer is 0.05 atomic % or less on average, the peak strength ratio of a specific plane falls within a specific range when the titanium carbonitride is X-ray diffracted, or the internal layer constituting the coating layer consists of a first layer of titanium nitride that contacts the base material and a second layer, placed on the first one, has a hardness ranging from 1600 to 2400 kg/mm . The realized coating has high wear-resistance, and the coating film and the base material are strongly bonded to each other, thereby providing superior peeling resistance during cutting.