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1. 发明专利

DE60107177T2 未知
公开(公告)号：DE60107177T2
公开(公告)日：2005-11-03
申请号：DE60107177
申请日：2001-09-06
申请人： NGK SPARK PLUG CO
发明人： KATO HIDEKI , HATANO YUKI , YUKIMACHI HIDEAKI
IPC分类号： C23C16/30 , B23B27/14 , C23C16/32
摘要： A ceramic cutting tool comprises a ceramic base member 4 of a tool main body 1 which is formed of a composite ceramic which contains a hard phase dispersed within an alumina matrix phase. The hard phase contains, as a predominant component, one or more elements selected from hard-phase-forming metal elements M in the form of at least a carbide, a nitride, or a boride, or in the form of a solid solution of at least two selected from the carbide, the nitride, and the boride. The hard-phase-forming metal elements M include Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si. The surface of the ceramic base member 4 is covered with a coating layer 1f, which contains titanium carbonitride or titanium nitride as a predominant component. The coating layer 1f has an average crystal-grain size of 0.1 to 0.5 mu m as observed on the surface, and an average thickness of 0.5 to 2 mu m. The coating layer 1f is formed through CVD performed in a low to medium temperature range of 750 to 900 DEG C. The ceramic cutting tool can be fabricated at low cost and can secure stable cutting performance over a long period even when the tool is used under severe cutting conditions under which large thermal and mechanical loads act on the tool.

2. 发明专利

DE60107177D1 未知
公开(公告)号：DE60107177D1
公开(公告)日：2004-12-23
申请号：DE60107177
申请日：2001-09-06
申请人： NGK SPARK PLUG CO
发明人： KATO HIDEKI , HATANO YUKI , YUKIMACHI HIDEAKI
IPC分类号： C23C16/30 , B23B27/14 , C23C16/32
摘要： A ceramic cutting tool comprises a ceramic base member 4 of a tool main body 1 which is formed of a composite ceramic which contains a hard phase dispersed within an alumina matrix phase. The hard phase contains, as a predominant component, one or more elements selected from hard-phase-forming metal elements M in the form of at least a carbide, a nitride, or a boride, or in the form of a solid solution of at least two selected from the carbide, the nitride, and the boride. The hard-phase-forming metal elements M include Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si. The surface of the ceramic base member 4 is covered with a coating layer 1f, which contains titanium carbonitride or titanium nitride as a predominant component. The coating layer 1f has an average crystal-grain size of 0.1 to 0.5 mu m as observed on the surface, and an average thickness of 0.5 to 2 mu m. The coating layer 1f is formed through CVD performed in a low to medium temperature range of 750 to 900 DEG C. The ceramic cutting tool can be fabricated at low cost and can secure stable cutting performance over a long period even when the tool is used under severe cutting conditions under which large thermal and mechanical loads act on the tool.

3. 发明公开

EP2138252A4 INSERT AND CUTTING TOOL 有权转让
标题翻译： USE和刀具
公开(公告)号：EP2138252A4
公开(公告)日：2016-10-12
申请号：EP08722206
申请日：2008-03-14
申请人： NGK SPARK PLUG CO
发明人： TOYODA RYOJI , SUZUKI YUSUKE , HATANO YUKI
IPC分类号： B23B27/14 , C04B35/584
CPC分类号： B23B27/148 , B23C2226/73 , C04B35/5935 , C04B35/597 , C04B2235/3206 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3869 , C04B2235/3873 , C04B2235/3878 , C04B2235/5445 , C04B2235/656 , C04B2235/6567 , C04B2235/658 , C04B2235/723 , C04B2235/75 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/85 , C04B2235/96 , C04B2235/9607 , Y10T407/27

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