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公开(公告)号：US11920222B2
公开(公告)日：2024-03-05
申请号：US17049599
申请日：2019-04-03
CPC分类号： C22C26/00 , B23B27/148 , C22C1/05 , B23B2226/31 , C22C2026/007 , C22C2026/008
摘要： A composite sintered material includes: a plurality of diamond grains having an average grain size of less than or equal to 10 μm; a plurality of cubic boron nitride grains having an average grain size of less than or equal to 2 μm; and a plurality of aluminum oxide grains having an average grain size of less than or equal to 0.5 μm; and a remainder of a binder phase, wherein at least parts of adjacent diamond grains are bound to one another, the binder phase includes cobalt, in the composite sintered material, a content of the diamond grains is from 30 to 92 volume %, a content of the cubic boron nitride grains is from 3 to 40 volume %, a content of the aluminum oxide grains is from 2 to 15 volume %, and a content of the cobalt is from 3 to 30 volume %.
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公开(公告)号：USD1002692S1
公开(公告)日：2023-10-24
申请号：US29883411
申请日：2023-01-27
设计人： Masashi Harada , Takashi Harada , Satoru Kukino , Taisuke Higashi
摘要： FIG. 1 is a front view of a cutting tool in accordance with the present design;
FIG. 2 is a rear view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is an enlarged perspective view of 8-8 portion of FIG. 7.
The broken lines shown in the views represent portions of the cutting tool that form no part of the claimed design.-
公开(公告)号：USD1001169S1
公开(公告)日：2023-10-10
申请号：US29849937
申请日：2022-08-16
摘要： FIG. 1 is a front view of a cutting tool in accordance with an embodiment of the present design;
FIG. 2 is a rear view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a first perspective view thereof;
FIG. 8 is a second perspective view thereof;
FIG. 9 is a cross sectional view taken along line 9-9 of FIG. 1;
FIG. 10 is a cross sectional view taken along line 10-10 of FIG. 1;
FIG. 11 is a cross sectional view taken along line 11-11 of FIG. 4;
FIG. 12 is an enlarged view of portion 12 of FIG. 7; and,
FIG. 13 is a referential view showing the state in use thereof.
The broken lines in the drawings depict portions of the cutting tool and environmental subject matter which form no part of the claimed design.-
公开(公告)号：US11773030B2
公开(公告)日：2023-10-03
申请号：US18015298
申请日：2021-10-26
发明人： Keita Miyamoto , Satoru Kukino , Akihiko Ueda , Michiko Matsukawa
IPC分类号： C04B35/5831 , C04B35/628 , C04B41/00
CPC分类号： C04B35/5831 , C04B35/62836 , C04B35/62892 , C04B41/0072 , C04B2235/3804 , C04B2235/3865 , C04B2235/5436 , C04B2235/762
摘要： A cBN sintered material comprising cBN particles and a binder phase, in which the binder phase contains AlN and AlB2, a content proportion of cBN particles is 70 to 97 vol %, cBN sintered material has a volume resistivity up to 5×10−3 Ωcm, a rate of a peak intensity derived from Al with respect to a peak intensity derived from cBN particles is less than 1.0%, cBN particles include fine particles and coarse particles, coarse particles optionally include ultra-coarse particles, with respect to the entire cBN particles, a content proportion α of fine particles is from 10 vol %, a content proportion β of coarse particles is from 30 vol %, a content proportion γ of ultra-coarse particles is 25 vol % or less, and a total of the content proportion α of fine particles and the content proportion β of coarse particles is 50 to 100 vol %.
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公开(公告)号：US11591266B2
公开(公告)日：2023-02-28
申请号：US17625750
申请日：2020-07-17
发明人： Hisaya Hama , Katsumi Okamura , Akito Ishii , Satoru Kukino
IPC分类号： 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, 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.
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公开(公告)号：US11554427B2
公开(公告)日：2023-01-17
申请号：US16631267
申请日：2018-05-18
发明人： Tsutomu Hirano , Satoru Kukino
摘要： A cutting insert according to one embodiment includes: a rake face; a flank face continuous to the rake face; and a cutting edge constituted of a ridgeline between the rake face and the flank face. A coolant flow path is provided inside the cutting insert. One end portion of the coolant flow path opens in the flank face to form a coolant ejection hole. The flank face is provided with a coolant guide groove extending from the coolant ejection hole toward the cutting edge with a base end portion of the coolant guide groove being connected to the coolant ejection hole and with a front end portion of the coolant guide groove being disposed at a position close to the cutting edge relative to the base end portion.
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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：US11208324B2
公开(公告)日：2021-12-28
申请号：US17052920
申请日：2020-02-27
发明人： Michiko Matsukawa , Satoru Kukino , Taisuke Higashi , Machiko Abe
IPC分类号： C01B21/064 , B23B27/14
摘要： A polycrystalline cubic boron nitride comprising 98.5% by volume or more of cubic boron nitride, wherein the cubic boron nitride has a dislocation density of more than 8×1015/m2, the polycrystalline cubic boron nitride comprises a plurality of crystal grains, and the plurality of crystal grains have a median diameter d50 of an equivalent circle diameter of 0.1 μm or more and 0.5 μm or less.
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