公开(公告)号：EP4357491A1

公开(公告)日：2024-04-24

申请号：EP22824700.3

申请日：2022-05-02

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： SUMIYA, Hitoshi ,  LEE, Jin Hwa ,  TERAMOTO, Minori

IPC分类号： C30B29/04 ,  B23B27/14 ,  B23B27/20 ,  C30B9/10 ,  C30B33/04

CPC分类号： B23B27/20 ,  B23B27/14 ,  C30B29/04 ,  C30B33/04 ,  C30B9/10

摘要： A synthetic single crystal diamond that includes nitrogen atoms at a concentration of 50 ppm or more and 1000 ppm or less in terms of number of atoms, wherein the synthetic single crystal diamond contains an aggregate composed of one vacancy and two substitutional nitrogen atoms present adjacent to the vacancy, a ratio b/a of a length "b" of a longer diagonal line of a second Knoop indentation to a length "a" of a longer diagonal line of a first Knoop indentation is 0.90 or less on the synthetic single crystal diamond, the first Knoop indentation is an indentation formed on a surface of the synthetic single crystal diamond in a state where a Knoop indenter is pressed in a direction of a {110} plane of the synthetic single crystal diamond in accordance with JIS Z 2251:2009 under conditions of a temperature of 23°C±5°C and a test load of 4.9 N, and the second Knoop indentation is a Knoop indentation remaining on the surface of the synthetic single crystal diamond after the test load is released.

公开(公告)号：EP2839907B1

公开(公告)日：2018-10-03

申请号：EP13777839.5

申请日：2013-04-11

申请人： Sumitomo Electric Hardmetal Corp.

发明人： IMAMURA, Shinya ,  ICHIKAWA, Takahiro ,  OKUNO, Susumu ,  KANAOKA, Hideaki ,  TSUDA, Keiichi

IPC分类号： C23C16/34 ,  C23C16/36 ,  C23C16/40 ,  C23C28/04 ,  C23C14/06 ,  C23C14/32

CPC分类号： B23B27/14 ,  B23B2222/28 ,  B23B2224/32 ,  B23B2224/36 ,  B23C5/16 ,  B23C2222/28 ,  B23C2224/32 ,  B23C2224/36 ,  C23C14/0641 ,  C23C14/0658 ,  C23C14/0664 ,  C23C14/325 ,  C23C16/34 ,  C23C16/36 ,  C23C16/403 ,  C23C28/042 ,  C23C28/044 ,  C23C28/048 ,  Y10T428/265 ,  Y10T428/31678

摘要： A surface-coated cutting tool of the present invention includes a base material and a coating formed on the base material, the coating includes one or two or more layers, a layer among these layers that abuts on the base material is a TiN layer, the TiN layer contains at least one element together with TiN, the element has a concentration distribution in a thickness direction of the TiN layer, and the concentration distribution includes a region where the concentration of the element decreases in a direction from the base material toward a surface of the coating.

公开(公告)号：EP3369831A1

公开(公告)日：2018-09-05

申请号：EP16859940.5

申请日：2016-10-28

申请人： Sumitomo Electric Industries, Ltd.

发明人： ISHII, Akito ,  WATANOBE, Naoki ,  HARADA, Takashi ,  KUKINO, Satoru

IPC分类号： C22C1/05 ,  B22F1/00 ,  B22F3/14 ,  B22F3/24 ,  B22F9/04 ,  B23B27/14 ,  B23B27/20 ,  C22C19/00

CPC分类号： B22F1/00 ,  B22F3/14 ,  B22F3/24 ,  B22F9/04 ,  B23B27/14 ,  B23B27/20 ,  C22C1/05 ,  C22C19/00

摘要： A sintered material contains hard particles composed of one or more selected from the group consisting of cubic boron nitride, Al 2 O 3 , AlON, SiAlON, TiC, TiCN, TiN, WC, and diamond, a metallic binder phase mainly composed of Co or Ni and containing at least one element selected from the group consisting of Co, Ni, Al, W, V, and Ti, and Al 2 O 3 dispersed in the metallic binder phase.

公开(公告)号：EP3369503A1

公开(公告)日：2018-09-05

申请号：EP16859882.9

申请日：2016-10-27

申请人： Mitsubishi Materials Corporation

发明人： OGAMI Tsuyoshi ,  HASHIMOTO Tatsuo ,  ICHIMIYA Natsuki

IPC分类号： B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C23C14/06

CPC分类号： B23B27/14 ,  B23B51/00 ,  B23B2228/105 ,  B23C5/16 ,  C23C14/0021 ,  C23C14/0641 ,  C23C14/325 ,  C23C14/505 ,  C23C16/34 ,  C23C28/042 ,  C23C28/044

摘要： A surface-coated cutting tool includes a tool body and a hard coating layer including a lower layer and an upper layer. The lower layer is made of a complex nitride layer of Al, Ti, and Si with the thickness of 0.3 to 3.0 µm. It satisfies 0.3 ≤ α ≤ 0.5 and 0.01 ≤ β ≤ 0.10 (atomic ratio) being expressed by (Al 1-α-β Ti α Si β )N. The upper layer is made of a complex nitride layer of Al, Cr, Si, and Cu with the thickness of 0.5 to 5.0 µm. It satisfies 0.15 ≤ a ≤ 0.40, 0.05 ≤ b ≤ 0.20, and 0.005 ≤ c ≤ 0.05 (atomic ratio) being expressed by (Al 1-a-b-c Cr a Si b Cu c )N. The upper layer is made of crystals having a hexagonal structure, and a half width of a diffraction peak of a (110) plane present in a range of 2θ = 55° to 65° is 1.0° to 3.5°.

公开(公告)号：EP3150740B1

公开(公告)日：2018-09-05

申请号：EP15803758.0

申请日：2015-03-26

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： FUWA Ryoutarou ,  KUBOTA Kazuyuki ,  FUKUNAGA Yuuzoh

IPC分类号： C23C14/06 ,  C22C1/05 ,  C22C32/00 ,  C23C14/32 ,  B23B27/14 ,  C23C14/34 ,  C23C14/08 ,  C23C14/02

CPC分类号： C23C14/3414 ,  B23B27/14 ,  C22C1/05 ,  C22C32/00 ,  C23C14/024 ,  C23C14/0641 ,  C23C14/0676 ,  C23C14/083 ,  C23C14/165 ,  C23C14/325 ,  C23C14/345 ,  C23C14/3485

摘要： An arc-ion-plated hard coating having a composition represented by (Al x Ti y W z ) a N( 1-a-b )O b , wherein x, y, z, a and b are numbers meeting by atomic ratio 0.6 ‰¤ x ‰¤ 0.8, 0.05 ‰¤ y ‰¤0.38, 0.02 ‰¤ z ‰¤ 0.2, x + y + z = 1, 0.2 ‰¤ a ‰¤ 0.8, and 0.02 ‰¤ b ‰¤ 0.10), and having W-O bonds with substantially no Al-O bonds when identified by X-ray photoelectron spectroscopy, and having only a NaCl-type structure in an X-ray diffraction pattern.

公开(公告)号：EP3366815A1

公开(公告)日：2018-08-29

申请号：EP16857366.5

申请日：2016-10-14

申请人： Sumitomo Electric Industries, Ltd. ,  Sumitomo Electric Hardmetal Corp.

发明人： NISHIBAYASHI, Yoshiki ,  TATSUMI, Natsuo ,  NOHARA, Takuya ,  KOBAYASHI, Yutaka ,  UEDA, Akihiko

IPC分类号： C30B29/04 ,  B21C3/02 ,  B23B27/14 ,  B23B27/20 ,  C23C16/27 ,  C23C16/56

CPC分类号： B21C3/025 ,  B21C3/02 ,  B23B27/14 ,  B23B27/20 ,  C23C16/27 ,  C23C16/56 ,  C30B25/02 ,  C30B29/04

摘要： A single-crystal diamond includes a pair of main surfaces facing each other, an impurity concentration being changed along a first direction in each of the main surfaces.

公开(公告)号：EP2905099B1

公开(公告)日：2018-08-08

申请号：EP13843870.0

申请日：2013-06-27

申请人： Sumitomo Electric Hardmetal Corp.

发明人： PASEUTH, Anongsack ,  TSUDA, Keiichi ,  OKUNO, Susumu ,  KANAOKA, Hideaki ,  ICHIKAWA, Takahiro ,  MORIMOTO, Hiroyuki ,  ITOH, Minoru

IPC分类号： B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C23C30/00 ,  C23C16/38

CPC分类号： B23B27/14 ,  B23B2228/04 ,  B23B2228/105 ,  C23C16/38 ,  C23C30/005 ,  Y10T407/27

摘要： A surface-coated cutting tool of the present invention includes a base material and a coating film formed on the base material. The coating film includes at least one TiB 2 layer. The TiB 2 layer includes Cl together with TiB 2 . This surface-coated cutting tool is characterized in that assuming that in the TiB 2 layer, a first region represents a region having a thickness of 0.5 µm from an interface on the base material side, and a second region represents a region having a thickness of 0.5 µm from an interface on the coating film surface side, an atomic ratio Cl/(Ti+Cl) between Ti and Cl is higher in the second region than in the first region.

公开(公告)号：EP3213843A4

公开(公告)日：2018-07-18

申请号：EP15855707

申请日：2015-10-16

申请人： NGK SPARK PLUG CO

发明人： ANDOH NAOKI ,  KOIDE MINORU ,  FUJIMOTO TAKASHI

IPC分类号： B23B27/22 ,  B23B27/04 ,  B23B27/14

CPC分类号： B23B27/04 ,  B23B27/14 ,  B23B27/22

摘要： During grooving or cutting-off, chips are curled into a flat spiral spring shape with no lateral displacement, cut to an appropriate curl length, and then discharged, irrespective of their thickness that varies according to the amount of feed. Inclined surfaces 51 and 52 are formed on a rake face 40 such that they incline downward toward a central portion between side cutting edges 120, and a recessed groove 60 is formed in the central portion between the inclined surfaces such that the recessed groove 60 extends from the the end cutting edge 110 in the forward-rearward direction. The groove width of the recessed groove 60 gradually increases from the position of the end cutting edge 110 toward the rear, then gradually decreases such that the recessed groove 60 has a narrowest portion at a position P2 forward of the position P3 of an upper end 45 of a breaker wall 43 and rearward of a positive rake angle rear end position P1, and then gradually increases toward the rear up to the position P3 of the upper end 45 of the breaker wall 43. The dimensional relation W1

公开(公告)号：EP3219420A4

公开(公告)日：2018-06-27

申请号：EP15858400

申请日：2015-11-12

申请人： MITSUBISHI MATERIALS CORP

发明人： ASANUMA HIDETOSHI

IPC分类号： C23C28/00 ,  B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C23C14/00 ,  C23C14/02 ,  C23C14/06 ,  C23C14/32 ,  C23C30/00

CPC分类号： B23B27/148 ,  B23B27/14 ,  B23B51/00 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2228/105 ,  B23B2228/36 ,  B23C5/16 ,  B23C2222/16 ,  B23C2222/28 ,  B23C2228/10 ,  C23C14/0635 ,  C23C14/0641 ,  C23C14/0688 ,  C23C14/325 ,  C23C28/42 ,  C23C28/44 ,  C23C30/005

摘要： Provided is a coated tool which exhibits excellent wear resistance even in a case where carbon steel, alloy steel, high hardness steel, or the like is cut under high-speed cutting conditions with the generation of a high-temperature heat. In a surface-coated cutting tool in which a hard coating layer having a total layer thickness of 0.5 to 10 µm is deposited on a surface of a tool body made of WC-based cemented carbide or TiCN-based cermet, the hard coating layer has an alternately laminated structure of A layers and B layers, in a case where the A layer is expressed by a composition formula: (Al a Ti 1-a )N (here, a is in atomic ratio), the A layer satisfies 0.50 ‰¤ a

公开(公告)号：EP3214059A4

公开(公告)日：2018-06-20

申请号：EP15856133

申请日：2015-10-29

申请人： TUNGALOY CORP

发明人： SHIRO KENTARO

IPC分类号： C04B35/5831 ,  B23B27/14 ,  B23B27/20 ,  C04B35/645 ,  C04B41/00 ,  C04B41/50 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89

CPC分类号： C04B35/5831 ,  B23B27/14 ,  B23B27/148 ,  B23B27/20 ,  B23B2224/04 ,  B23B2226/125 ,  B23B2228/105 ,  C04B35/6261 ,  C04B35/62615 ,  C04B35/6262 ,  C04B35/6264 ,  C04B35/62685 ,  C04B35/6303 ,  C04B35/64 ,  C04B35/645 ,  C04B41/009 ,  C04B41/5068 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3246 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3839 ,  C04B2235/386 ,  C04B2235/3865 ,  C04B2235/3886 ,  C04B2235/402 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/549 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96 ,  C04B41/4529 ,  C04B41/5063 ,  C04B41/5062

摘要： The cubic boron nitride sintered body is a cubic boron nitride sintered body comprising 50% by volume or more and 75% by volume or less of a cubic boron nitride (1) and 25% by volume or more and 50% by volume or less of a binder phase and inevitable impurities, the binder phase contains an Al compound (3) and a Zr compound (2), the Al compound (3) contains Al and at least one element selected from the group consisting of N, O and B, the Zr compound (2) contains Zr and at least one element selected from the group consisting of C, N, O and B, and at the polished surface of the cubic boron nitride sintered body, when a number of a plurality of line segments (5) drawn radially at equal intervals from a center of gravity (4) of the Zr compound (2) to a portion other than the Zr compound (2) is made N, and among the line segments (5), at the boundary of the Zr compound and the portion of a composition other than the Zr compound, a number of the line segments (5) at which the Zr compound and the cubic boron nitride are contacting with each other is made n, a number of the Zr compound (2) satisfying a relation of n/N being 0.25 or more and 0.8 or less is 40% or more based on a total number of the Zr compound (2).