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公开(公告)号：US11554421B2
公开(公告)日：2023-01-17
申请号：US16639866
申请日：2018-05-15
摘要： A cutting tool includes a substrate and a diamond layer that covers the substrate. The diamond layer includes a rake face and a flank continuous to the rake face. A ridgeline between the rake face and the flank forms a cutting edge. The substrate includes a top surface opposed to the rake face. When viewed in a direction perpendicular to the top surface, the rake face includes a plurality of protrusions. In a cross-section perpendicular to a direction of extension of the cutting edge, each of the plurality of protrusions includes an inclined portion and a curvature portion continuous to the inclined portion. In the cross-section, a height of the inclined portion in the direction perpendicular to the top surface increases as a distance from the cutting edge increases.
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公开(公告)号：US11541464B2
公开(公告)日：2023-01-03
申请号：US16499049
申请日：2018-01-10
发明人： Gaku Harada
IPC分类号： B23B27/20 , B23K26/361 , B23K26/38 , B23K26/0622 , B23K26/40 , B23K26/53 , B23K101/20 , B23P15/28 , B23K103/00
摘要： A method for manufacturing a cutting tool according to one embodiment is a method for manufacturing a cutting tool, the cutting tool including a base material and a diamond single crystal material fixed to the base material, the diamond single crystal material having a rake face, a flank face continuous with the rake face, and a cutting edge formed by a ridgeline serving as a boundary between the rake face and the flank face. The method for manufacturing a cutting tool according to one form of the present disclosure includes a flank face irradiation step of applying a laser to the diamond single crystal material along the cutting edge from a side of the flank face. The laser has a pulse width of 1×10−12 seconds or less and a peak output of less than 1 W in the flank face irradiation step.
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公开(公告)号：US20220288699A1
公开(公告)日：2022-09-15
申请号：US17636690
申请日：2020-05-22
发明人： Mayuka SEGAWA , Machiko ABE , Akihiko UEDA , Yoshinori TANIGAWA , Takashi HARADA
摘要： A drill includes a blade tip part that is formed of diamond and a trunk part that is formed of diamond and is continuous with the blade tip part, the drill rotating about a drill axis, the blade tip part includes N cutting edges where N is an integer of no less than 4, and a proportion of S1 to S2 is no less than 30% and no more than 60%, where S1 is an area of the drill in a cross-section with the drill axis as a normal line, the cross-section including a boundary between the blade tip part and the trunk part, r is a maximum value of a distance from the drill axis to an outer edge of the drill in the cross-section and S2 is an area of a circle with r as a radius.
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公开(公告)号：US11433651B2
公开(公告)日：2022-09-06
申请号：US16939948
申请日：2020-07-27
发明人： Masataka Mori , Nozomu Washio , Taketo Hashimoto
IPC分类号： B32B23/04 , B23B27/08 , B23B27/20 , B32B27/08 , B32B27/30 , B32B27/36 , B32B27/28 , B32B27/20
摘要： According to at least one embodiment, there is provided a hard coat laminated film, including, from a surface layer side, a second hard coat, a first hard coat, and a transparent resin film layer, where the first hard coat and the transparent resin film layer are laminated directly, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; and (B) 1 to 100 parts by mass of an N-substituted (meth)acrylamide compound, where the second hard coat is formed of a coating material containing no inorganic particles, and where the transparent resin film is a transparent multilayer film or a transparent monolayer film made of a poly(meth)acrylimide resin, where the transparent multilayer film includes a surface layer made of a poly(meth)acrylimide resin, the first hard coat being formed on the surface layer.
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公开(公告)号：US20220274186A1
公开(公告)日：2022-09-01
申请号：US17636878
申请日：2020-08-04
发明人： Akihiko UEDA , Naoki WATANOBE , Satoru KUKINO
摘要： There is provided a diamond cutting tool including a cutting edge portion containing single crystal diamond or binderless polycrystalline diamond and graphite, wherein when Raman spectroscopy is performed on a surface of the cutting edge portion, a ratio R1 of Ig1 to a sum of Id1 and the Ig1 is equal to or more than 0.5 and equal to or less than 1, where the Idi represents a peak intensity of first carbon in the surface, the Ig1 represents a peak intensity of second carbon in the surface, the first carbon represents carbon that forms the single crystal diamond or the binderless polycrystalline diamond.
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公开(公告)号：US20220152708A1
公开(公告)日：2022-05-19
申请号：US17435725
申请日：2020-03-04
发明人： Ryota Takei , Shiro Oguchi , Masashi Momma , Kenji Yumoto
IPC分类号： B23B27/20 , B28B3/00 , B28B11/24 , C04B35/5831
摘要： A cBN sintered compact comprising a cubic boron nitride and a ceramic binder phase, wherein a cubic C-containing Ta compound in an amount of 1.0 to 15.0 vol % is dispersed in the ceramic binder phase and has a mean particle diameter of 50 to 500 nm.
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公开(公告)号：US20210282284A1
公开(公告)日：2021-09-09
申请号：US17257911
申请日：2019-07-04
发明人： Hyunsoo KIM
摘要： Various embodiments relate to a case included in an electronic device, and according to one embodiment, an electronic device case comprises: an exterior case formed by processing an upper surface of a base material of the electronic device case by means of a first head of a CNC device, and at least one pattern formed by processing a lateral surface of the exterior case by means of second and third heads of the CNC device, wherein at least one pattern includes first and second patterns, the first pattern is processed at the lateral surface of the exterior case by means of the second head, and the second pattern can be processed at the first pattern by means of the third head. In addition, other various embodiments are possible.
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公开(公告)号：US11052466B2
公开(公告)日：2021-07-06
申请号：US15763911
申请日：2017-08-24
发明人： Gaku Harada , Yoshinori Tanigawa , Satoru Kukino
摘要： A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a rake face, a flank face, and a cutting edge. The flank face is contiguous to the rake face. The cutting edge is provided as a ridge line between the rake face and the flank face. The radius of curvature of the cutting edge is 2 μm or more and 8 μm or less.
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公开(公告)号：US20200238393A1
公开(公告)日：2020-07-30
申请号：US16754305
申请日：2019-02-08
发明人： Luiz Fernando Penna FRANCA , Christopher John Howard WORT , Jonathan Christopher NEWLAND , William Wayne LEAHY
IPC分类号： B23B27/20
摘要： A cutting element (1) for a tool with an electrically conductive track (6) formed at a surface region. The cutting element (1) comprises a HPHT produced polycrystalline diamond body. The conductive track (6) comprises graphite such that the electrically conductive track (6) has an electrical resistance substantially lower than that of the surface region.
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公开(公告)号：US10697058B2
公开(公告)日：2020-06-30
申请号：US15327439
申请日：2015-07-22
IPC分类号： C23C16/02 , C23C16/27 , C30B29/04 , C01B32/25 , C30B25/20 , B23B27/20 , B23B27/14 , B24B53/047 , C30B25/18 , C30B29/68
摘要： In an X-ray topography image for a crystal growth main surface of a single-crystal diamond, a group of crystal defect points are gathered, each of the crystal defect points being a tip point of a crystal defect line reaching the crystal growth main surface, the crystal defect line representing a line in which a crystal defect exists. Further, in the single-crystal diamond, a plurality of crystal defect line-like gathered regions exist in parallel. In the plurality of crystal defect line-like gathered regions, groups of crystal defect points are gathered to extend in the form of lines in a direction angled by not more than 30° relative to one arbitrarily specified direction. Accordingly, a single-crystal diamond is provided which is used suitably for a cutting tool, a polishing tool, an optical component, an electronic component, a semiconductor material, and the like.
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