发明名称 |
COATED CUTTING TOOL AND METHOD FOR PRODUCING THE SAME. |
摘要 |
<p>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<2>. 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.</p> |
申请公布号 |
EP0653499(A1) |
申请公布日期 |
1995.05.17 |
申请号 |
EP19940916435 |
申请日期 |
1994.05.31 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
UCHINO, KATSUYA, ITAMI WORKS OF SUMITOMO;NOMURA, TOSHIO, ITAMI WORKS OF SUMITOMO;OHARA, HISANORI, ITAMI WORKS OF SUMITOMO;CHUDO, MASUO, ITAMI WORKS OF SUMITOMO;KOBAYASHI, MITSUNORI, ITAMI WORKS OF SUMITOMO |
分类号 |
C23C16/32;C23C16/34;C23C16/36;C23C30/00;(IPC1-7):C23C16/30;B23B27/14;B23P15/28 |
主分类号 |
C23C16/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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