发明名称 |
TOOL COMPRISING SINTERED CUBIC BORON NITRIDE |
摘要 |
The life of a tool comprising sintered cubic boron nitride is prolonged by causing the sintered cubic boron nitride to combine heat resistance with chipping resistance to a high degree. In this tool comprising sintered cubic boron nitride, at least the tip comprises sintered cubic boron nitride which comprises grains of cubic boron nitride and a binder phase. The tool is characterized in that the content of the grains of cubic boron nitride in the sintered cubic boron nitride is 40-70 vol.% and the binder phase comprises a first component and a second component, the first component being TiC and the second component being TiB2 and/or AlB2. The tool is further characterized in that when the X-ray diffraction intensity for the (200) plane of the first component is expressed by I1 and the X-ray diffraction intensity for the (101) plane of the second component is expressed by I2, then I1 is the highest of the X-ray diffraction intensities of all the components of the sintered cubic boron nitride other than the grains of cubic boron nitride and I1 and I2 satisfy 0.01=I2/I1=0.1. |
申请公布号 |
WO2012053375(A1) |
申请公布日期 |
2012.04.26 |
申请号 |
WO2011JP73179 |
申请日期 |
2011.10.07 |
申请人 |
SUMITOMO ELECTRIC HARDMETAL CORP.;OKAMURA, KATSUMI;ABE, MACHIKO;KUKINO, SATORU |
发明人 |
OKAMURA, KATSUMI;ABE, MACHIKO;KUKINO, SATORU |
分类号 |
B23B27/14;B23B27/20;C04B35/583 |
主分类号 |
B23B27/14 |
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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