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公开(公告)号：US11377390B2
公开(公告)日：2022-07-05
申请号：US17255733
申请日：2019-12-16
IPC分类号： C04B35/5831 , C04B35/626 , C04B35/645
摘要： A cubic boron nitride sintered material includes: more than 80 volume % and less than 100 volume % of cubic boron nitride grains; and more than 0 volume % and less than 20 volume % of a binder phase. The binder phase includes: at least one selected from a group consisting of a simple substance, an alloy, and an intermetallic compound selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, aluminum, silicon, cobalt, and nickel. A dislocation density of the cubic boron nitride grains is more than or equal to 3×1017/m2 and less than or equal to 1×1020/m2.
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公开(公告)号：US11542203B2
公开(公告)日：2023-01-03
申请号：US17626064
申请日：2020-07-17
IPC分类号： C04B35/5831
摘要： A cubic boron nitride sintered material includes: 20 to 80 volume % of cBN grains; and 20 to 80 volume % of a binder phase, wherein the binder phase includes first binder grains and second binder grains, in each of the first binder grains, a ratio of the number of atoms of the first metal element to a total of the number of atoms of the titanium and the number of atoms of the first metal element is more than or equal to 0.01% and less than 10%, in each of the second binder grains, this ratio is more than or equal to 10% and less than or equal to 80%, and in an X-ray diffraction spectrum of the cubic boron nitride sintered material, one or both of conditions 1 and 2 are satisfied.
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公开(公告)号：USD960214S1
公开(公告)日：2022-08-09
申请号：US29716419
申请日：2019-12-10
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公开(公告)号：US11338371B2
公开(公告)日：2022-05-24
申请号：US16344193
申请日：2018-08-02
发明人： Hironari Moroguchi , Satoru Kukino
IPC分类号： B23B27/14
摘要： A cutting insert has a surface that relates to cutting, the surface comprising cBN sintered material, ceramics, or cermet. The cutting insert comprises: a rake face; a flank face; a chamfer located between the rake face and the flank face; and a cutting edge formed by a ridgeline at which the flank face and the chamfer intersect. The cutting edge comprises a cutting edge portion for push cutting, a cutting edge portion for pull cutting, and a connecting cutting edge portion located between the cutting edge portion for push cutting and the cutting edge portion for pull cutting. In the chamfer located along the cutting edge, the chamfer located along the connecting cutting edge portion has a minimum width.
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公开(公告)号：US11518718B2
公开(公告)日：2022-12-06
申请号：US17626051
申请日：2020-07-17
IPC分类号： C04B35/5831 , C04B35/5835 , C04B35/645
摘要： A cubic boron nitride sintered material includes: 20 t to 80 volume % of cBN grains; and 20 to 80 volume % of a binder phase, wherein the binder phase includes first binder grains and second binder grains, in each of the first binder grains, a ratio of the number of atoms of the first metal element to a total of the number of atoms of the titanium and the first metal element is more than or equal to 0.01% and less than 10%, in each of the second binder grains, the ratio is more than or equal to 10% and less than or equal to 80%, and an average grain size of the second binder grains is more than or equal to 0.2 μm and less than or equal to 1 μm.
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公开(公告)号：US20200055790A1
公开(公告)日：2020-02-20
申请号：US16341374
申请日：2017-09-20
发明人： Makoto Setoyama , Nozomi Tsukihara , Yuki Tsutsumiuchi , Satoru Kukino , Yusuke Matsuda , Hironari Moroguchi
摘要： A surface-coated cutting tool including a substrate including a rake face and a flank face and a coating which covers a surface of the substrate is provided. The substrate is made of a cBN sintered material or a ceramic sintered material. The coating includes an alternating layer. The alternating layer is made by alternately stacking a first layer and a second layer different in composition from the first layer. The first layer contains Al, Cr, and N. The second layer contains Ti, Al, and N. A ratio T1/T2 between a thickness Ti of the first layer and a thickness T2 of the second layer is not lower than 0.1 and lower than 1. There are thirty or more interfaces at which the first layer and the second layer are in contact with each other.
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公开(公告)号：US11352298B2
公开(公告)日：2022-06-07
申请号：US17255550
申请日：2019-12-16
IPC分类号： C04B35/5831
摘要： A cubic boron nitride sintered material includes: more than 80 volume % and less than 100 volume % of cubic boron nitride grains; and more than 0 volume % and less than 20 volume % of a binder phase. The binder phase includes: at least one selected from a group consisting of a simple substance, an alloy, and an intermetallic compound selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, aluminum, silicon, cobalt, and nickel. A dislocation density of the cubic boron nitride grains is more than or equal to 1×1015/m2 and less than or equal to 1×1017/m2.
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公开(公告)号：US11161790B2
公开(公告)日：2021-11-02
申请号：US17254380
申请日：2019-12-16
发明人： Hironari Moroguchi , Michiko Matsukawa , Satoru Kukino , Akito Ishii , Katsumi Okamura , Machiko Abe , Kenta Sano
IPC分类号： C04B35/5831 , B23B27/14
摘要： A cubic boron nitride sintered material comprises 30% by volume or more and 80% by volume or less of cubic boron nitride grains and 20% by volume or more and 70% by volume or less of a binder phase, the cubic boron nitride grains having a dislocation density of 3×1017/m2 or more and 1×1020/m2 or less.
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