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1. 发明公开

EP4000779A1 CUBIC BORON NITRIDE SINTERED COMPACT 审中-公开
公开(公告)号：EP4000779A1
公开(公告)日：2022-05-25
申请号：EP20841409.4
申请日：2020-07-17
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. , Sumitomo Electric Hardmetal Corp.
发明人： HAMA, Hisaya , OKAMURA, Katsumi , ISHII, Akito , KUKINO, Satoru
IPC分类号： B23B27/14 , C04B35/5831
摘要： A cubic boron nitride sintered material includes: more than or equal to 50 volume% and less than 80 volume% of cubic boron nitride grains; and more than 20 volume% and less than or equal to 50 volume% of a binder phase, wherein the binder phase includes at least one selected from a group consisting of a compound composed of at least one element selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, and aluminum, and at least one element selected from a group consisting of nitrogen, carbon, boron, and oxygen, and a solid solution originated from the compound, and when an oxygen content is measured in a direction perpendicular to an interface between cubic boron nitride grains using TEM-EDX, a first region having an oxygen content larger than an average value of an oxygen content of a cubic boron nitride grain exists, the interface exists in the first region, and a length of the first region along the direction perpendicular to the interface is more than or equal to 0.1 nm and less than or equal to 10 nm.

2. 发明公开

EP3375553A1 CUTTING TOOL 有权
公开(公告)号：EP3375553A1
公开(公告)日：2018-09-19
申请号：EP16921616.5
申请日：2016-11-15
申请人： Sumitomo Electric Hardmetal Corp. , Sumitomo Electric Industries, Ltd.
发明人： MATSUDA, Yusuke , HIGASHI, Taisuke , KUKINO, Satoru , KANDA, Takashi
IPC分类号： B23C5/10
CPC分类号： B23C5/10
摘要： A cutting tool includes a shaft portion and a plurality of edge region groups. The shaft portion extends along the central axis and includes an outer peripheral surface surrounding the central axis. The plurality of edge region groups are spirally provided on the outer peripheral surface. The plurality of edge region groups include a first edge region group divided by a first nick. The first edge region group includes a first edge region and a second edge region that is adjacent to the first edge region, with the first nick lying therebetween. The first edge region includes a first rake face portion and a first flank face portion. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The second edge region includes a second rake face portion and a second flank face portion. The ridgeline between the second rake face portion and the second flank face portion constitutes a second cutting edge portion. As seen from the direction perpendicular to a plane tangent to the outer peripheral surface, in a state where the central axis overlaps a first end on the front end side of the first cutting edge portion, the inclination angle of the first cutting edge portion relative to the central axis is larger than the inclination angle of a straight line relative to the central axis, the straight line connecting the first end to a second end on the front end side of the second cutting edge portion.

3. 发明公开

EP4234738A1 DIAMOND SINTERED BODY AND TOOL PROVIDED WITH DIAMOND SINTERED BODY 审中-实审
公开(公告)号：EP4234738A1
公开(公告)日：2023-08-30
申请号：EP21882579.2
申请日：2021-10-05
申请人： Sumitomo Electric Hardmetal Corp. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： IWASAKI, Hirotsugu , UEDA, Akihiko , MATSUKAWA, Michiko , KUKINO, Satoru , HIRAI, Kei
IPC分类号： C22C26/00 , C04B35/52 , C01B32/26 , B01J3/06
摘要： A diamond sintered material includes diamond grains, wherein a content ratio of the diamond grains is more than or equal to 80 volume% and less than or equal to 99 volume% with respect to the diamond sintered material, an average grain size of the diamond grains is more than or equal to 0.1 µm and less than or equal to 50 µm, and a dislocation density of the diamond grains is more than or equal to 8.1×10 13 m -2 and less than 1.0×10 16 m -2 .

4. 发明公开

EP4234135A1 DIAMOND SINTERED BODY, AND TOOL COMPRISING DIAMOND SINTERED BODY 审中-实审
公开(公告)号：EP4234135A1
公开(公告)日：2023-08-30
申请号：EP20958713.8
申请日：2020-10-22
申请人： Sumitomo Electric Hardmetal Corp. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： IWASAKI, Hirotsugu , UEDA, Akihiko , MATSUKAWA, Michiko , KUKINO, Satoru
IPC分类号： B23B27/20 , C04B35/52 , C01B32/25 , B01J3/06
摘要： A diamond sintered material includes diamond grains, wherein a content ratio of the diamond grains is more than or equal to 80 volume% and less than or equal to 99 volume% with respect to the diamond sintered material, an average grain size of the diamond grains is more than or equal to 0.1 µm and less than or equal to 50 µm, and a dislocation density of the diamond grains is more than or equal to 1.2×10 16 m -2 and less than or equal to 5.4×10 19 m -2 .

5. 发明公开

EP4000778A1 CUBIC BORON NITRIDE SINTERED COMPACT AND METHOD FOR MANUFACTURING SAME 审中-公开
公开(公告)号：EP4000778A1
公开(公告)日：2022-05-25
申请号：EP20841032.4
申请日：2020-07-17
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. , Sumitomo Electric Hardmetal Corp.
发明人： HAMA, Hisaya , OKAMURA, Katsumi , ISHII, Akito , KUKINO, Satoru
IPC分类号： B23B27/14 , C04B35/5831
摘要： A cubic boron nitride sintered material includes: more than or equal to 20 volume% and less than 80 volume% of cubic boron nitride grains; and more than 20 volume% and less than or equal to 80 volume% of a binder phase, wherein the binder phase includes at least one selected from a group consisting of a compound composed of at least one element selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, and aluminum, and at least one element selected from a group consisting of nitrogen, carbon, boron, and oxygen, and a solid solution originated from the compound, and when a carbon content is measured from a cubic boron nitride grain into the binder phase in a direction perpendicular to an interface between the cubic boron nitride grain and the binder phase using TEM-EDX, a first region having a carbon content larger than an average value of a carbon content of the binder phase exists, the interface exists in the first region, and a length of the first region is more than or equal to 0.1 nm and less than or equal to 10 nm.

6. 发明公开

EP4000777A1 CUBIC BORON NITRIDE SINTERED COMPACT, AND CUTTING TOOL 审中-公开
公开(公告)号：EP4000777A1
公开(公告)日：2022-05-25
申请号：EP20840150.5
申请日：2020-07-17
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. , Sumitomo Electric Hardmetal Corp.
发明人： OKAMURA, Katsumi , AMEMIYA, Mayu , ISHII, Akito , DEGUCHI, Yuka , KUKINO, Satoru
IPC分类号： B23B27/14 , B23B27/20 , C04B35/5831
摘要： A cubic boron nitride sintered material comprises cubic boron nitride particles, a binding phase, and an interfacial phase. The interfacial phase intervenes between the cubic boron nitride particles and the binding phase. The interfacial phase includes aluminum, nitrogen, boron, and oxygen. A total of an average value of the atomic concentrations of aluminum included in the interfacial phase and an average value of the atomic concentrations of nitrogen included in the interfacial phase is 50.0 at% or more. A ratio of an average value of the atomic concentrations of nitrogen included in the interfacial phase to an average value of the atomic concentrations of boron included in the interfacial phase is more than 1.00.

7. 发明公开

EP3858803A1 CUBIC BORON NITRIDE POLYCRYSTALLINE BODY AND METHOD FOR PRODUCING SAME 审中-公开
公开(公告)号：EP3858803A1
公开(公告)日：2021-08-04
申请号：EP19867895.5
申请日：2019-09-04
申请人： Sumitomo Electric Hardmetal Corp. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： HIRANO, Tsutomu , KUKINO, Satoru , HIRAI, Kei
IPC分类号： C04B35/5831 , C04B35/645
摘要： There is provided a polycrystalline cubic boron nitride containing a cubic boron nitride at a content greater than or equal to 98.5% by volume, the polycrystalline cubic boron nitride having a dislocation density less than or equal to 8×10 15 /m 2 .

8. 发明公开

EP3854897A1 PRODUCTION METHOD OF CUBIC BORON NITRIDE SINTERED BODY, CUBIC BORON NITRIDE SINTERED BODY, AND CUTTING TOOL CONTAINING THIS 审中-公开
公开(公告)号：EP3854897A1
公开(公告)日：2021-07-28
申请号：EP19862666.5
申请日：2019-09-18
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. , Sumitomo Electric Hardmetal Corp.
发明人： OKAMURA, Katsumi , WATANABE, Yuichiro , ISHII, Akito , HARADA, Takashi , KUKINO, Satoru
IPC分类号： C22C29/16 , B23B27/14 , C04B35/5831 , C22C1/05
摘要： A method of producing a cubic boron nitride sintered material includes: forming an organic cubic boron nitride powder by attaching an organic substance onto a cubic boron nitride source material powder; preparing a powder mixture including more than or equal to 85 volume% and less than 100 volume% of the organic cubic boron nitride powder and a remainder of a binder source material powder by mixing the organic cubic boron nitride powder and the binder source material powder, the binder source material powder including WC, Co and Al; and obtaining the cubic boron nitride sintered material by sintering the powder mixture.

9. 发明公开

EP3156384A1 SINTERED BODY AND CUTTING TOOL 有权
标题翻译：烧结体和切削工具
公开(公告)号：EP3156384A1
公开(公告)日：2017-04-19
申请号：EP16802855.3
申请日：2016-02-24
申请人： Sumitomo Electric Hardmetal Corp. , Sumitomo Electric Industries, Ltd.
发明人： DANDA, Mayu , OKAMURA, Katsumi , KUKINO, Satoru
IPC分类号： C04B35/583 , B23B27/14
CPC分类号： C04B35/5831 , B23B27/148 , B23B2224/04 , B23B2226/125 , B23B2228/44 , B23C5/20 , B23C2224/04 , B23C2226/125 , B23C2228/49 , C01F7/34 , C01F7/36 , C01G25/02 , C01P2002/50 , C01P2002/54 , C01P2004/64 , C04B35/4885 , C04B35/6261 , C04B35/6264 , C04B35/6303 , C04B35/645 , C04B2235/3206 , C04B2235/3217 , C04B2235/3225 , C04B2235/3229 , C04B2235/3244 , C04B2235/3839 , C04B2235/3843 , C04B2235/3852 , C04B2235/386 , C04B2235/3865 , C04B2235/3873 , C04B2235/3886 , C04B2235/402 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/6567
摘要： A sintered compact has a first material, a second material, and a third material The first material is cubic boron nitride. The second material is a compound including zirconium. The third material is an aluminum oxide and the aluminum oxide includes a fine-particle aluminum oxide. The sintered compact has a first region in which not less than 5 volume % and not more than 50 volume % of the fine-particle aluminum oxide is dispersed in the second material. On arbitrary straight lines in the first region, an average value of continuous distances occupied by the fine-particle aluminum oxide is not more than 0.08 µm and a standard deviation of the continuous distances occupied by the fine-particle aluminum oxide is not more than 0.1 µm.
摘要翻译：烧结体具有第一材料，第二材料和第三材料。第一材料是立方氮化硼。第二种材料是含有锆的化合物。第三材料是氧化铝，并且氧化铝包括细颗粒氧化铝。该烧结体具有在第二材料中分散有5体积％以上且50体积％以下的微粒氧化铝的第一区域。在第一区域的任意直线上，细颗粒氧化铝占据的连续距离的平均值不大于0.08μm，并且细颗粒氧化铝占据的连续距离的标准偏差不大于0.1 微米。

10. 发明公开

EP3153485A1 SINTERED BODY AND CUTTING TOOL 有权
标题翻译： GESINTERTERKÖRPERUND SCHNEIDEWERKZEUG
公开(公告)号：EP3153485A1
公开(公告)日：2017-04-12
申请号：EP16802837.1
申请日：2016-01-26
申请人： Sumitomo Electric Hardmetal Corp. , Sumitomo Electric Industries, Ltd.
发明人： OKAMURA, Katsumi , DANDA, Mayu , KUKINO, Satoru
IPC分类号： C04B35/583 , B23B27/14 , B23B27/20 , B23C5/16 , C04B35/48
CPC分类号： C04B35/5831 , B23B27/14 , B23B27/148 , B23B27/20 , B23B2224/04 , B23B2226/125 , B23C5/16 , B23C5/20 , B23C2224/04 , B23C2226/125 , B23C2228/49 , C04B35/4885 , C04B35/6261 , C04B35/6264 , C04B35/62675 , C04B35/62685 , C04B35/6303 , C04B35/645 , C04B2235/3206 , C04B2235/3217 , C04B2235/3225 , C04B2235/3229 , C04B2235/3244 , C04B2235/3246 , C04B2235/3839 , C04B2235/386 , C04B2235/3865 , C04B2235/3873 , C04B2235/3886 , C04B2235/402 , C04B2235/441 , C04B2235/444 , C04B2235/5436 , C04B2235/5445 , C04B2235/80
摘要： A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO 2 and ZrO, the third material including α-Al 2 O 3 , and the sintered compact satisfying the following relation: 0.9 ≤ I zro 2 111 / I a 1 110 ≤ 30 ; and 0.3 ≤ I zro 111 / I a 1 110 ≤ 3 , where I a1 (110), I zro2 (111), and I zro (111) respectively represent X-ray diffraction intensities of a (110) plane of the α-Al 2 O 3 , a (111) plane of the cubic ZrO 2 , and a (111) plane of the ZrO.
摘要翻译：根据本发明的烧结体包括：第一材料，其为立方氮化硼; 锆的氧化物的第二材料; 作为铝的氧化物的第三种材料，第二种材料包括立方晶ZrO 2和ZrO，第三种材料包括±-Al 2 O 3，并且该烧结体满足以下关系：0.9‰¤I zro 2 111 / I 1 110‰¤30; 分别表示I a1（110），I zro2（111）和I zro（111）的X射线衍射强度，（110）平面的X射线衍射强度 ±Al 2 O 3，立方晶ZrO 2的（111）面和ZrO的（111）面。

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