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1. (WO2017168841) SURFACE-COATED CUBIC BORON NITRIDE SINTERED BODY AND CUTTING TOOL PROVIDED WITH SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/168841 International Application No.: PCT/JP2016/085887
Publication Date: 05.10.2017 International Filing Date: 02.12.2016
IPC:
B23B 27/14 (2006.01) ,B22F 3/24 (2006.01) ,C22C 29/16 (2006.01)
Applicants: SUMITOMO ELECTRIC HARDMETAL CORP.[JP/JP]; 1-1, Koyakita 1-chome, Itami-shi, Hyogo 6640016, JP
Inventors: TAKAHAMA, Kazushi; JP
SETOYAMA, Makoto; JP
OKAMURA, Katsumi; JP
Agent: FUKAMI PATENT OFFICE, P.C.; Nakanoshima Festival Tower West, 2-4, Nakanoshima 3-chome, Kita-ku, Osaka-shi, Osaka 5300005, JP
Priority Data:
2016-06832730.03.2016JP
Title (EN) SURFACE-COATED CUBIC BORON NITRIDE SINTERED BODY AND CUTTING TOOL PROVIDED WITH SAME
(FR) CORPS FRITTÉ EN NITRURE DE BORE CUBIQUE REVÊTU EN SURFACE ET OUTIL DE COUPE DOTÉ DE CELUI-CI
(JA) 表面被覆立方晶窒化硼素焼結体およびこれを備える切削工具
Abstract: front page image
(EN) A surface-coated cBN sintered body according to the present invention comprises a cBN sintered body and a coating film that covers the surface of the cBN sintered body. The cBN sintered body contains cBN particles and a binder. The ratio of the cBN particles in the cBN sintered body is more than 80% by volume but 98% by volume or less; and the binder contains a first compound that is formed from at least one of Al and Cr and at least one element selected from the group consisting of N, B and O. The coating film comprises a layer A that is in contact with the cBN sintered body. The layer A is configured from Alx1Cry1Mz1Ca1Nb1Oc1 (wherein M is one or more elements selected from among Ti, V, Nb and Si; 0.25 ≤ x1 ≤ 0.75; 0.25 ≤ y1 ≤ 0.75; 0 ≤ z1 ≤ 0.5; (x1 + y1 + z1) = 1; 0 ≤ a1 ≤ 0.5; 0.5 ≤ b1 ≤ 1; 0 ≤ c1 ≤ 0.1; and (a1 + b1 + c1) = 1).
(FR) L'invention concerne un corps fritté en cBN revêtu en surface selon la présente invention, comprenant un corps fritté en cBN et un film de revêtement qui recouvre la surface du corps fritté en cBN. Le corps fritté en cBN contient des particules de cBN et un liant. Le rapport des particules de cBN dans le corps fritté en cBN est supérieur à 80 % en volume mais ne dépasse pas 98 % en volume; et le liant contient un premier composé qui est formé à partir d'au moins un élément parmi Al et Cr et d'au moins un élément choisi dans le groupe constitué par N, B et O. Le film de revêtement comprend une couche A qui est en contact avec le corps fritté en cBN. La couche A est configurée à partir d'Alx1Cry1Mz1Ca1Nb10c1 (où M est un ou plusieurs éléments choisis parmi Ti, V, Nb et Si; 0,25 ≤ x1 ≤ 0,75; 0,25 ≤ y1 ≤ 0,75; 0 ≤ z1 ≤ 0,5; (x1 + y1 + z1) = 1; 0 ≤ a1 ≤ 0,5; 0,5 ≤ b1 ≤ 1; 0 ≤ c1 ≤ 0,1; et (a1 + b1 + c1) = 1).
(JA) 本発明の表面被覆cBN焼結体は、cBN焼結体と、cBN焼結体の表面を被覆する被膜と、を備える。cBN焼結体は、cBN粒子と結合材とを含む。cBN焼結体におけるcBN粒子の割合は80体積%超98体積%以下であり、結合材は、AlおよびCrの少なくとも1種の元素と、N、BおよびOからなる群より選択される少なくとも1種の元素とからなる第1化合物を含む。被膜は、cBN焼結体に接するA層を含む。A層は、Alx1Cry1z1a1b1c1(ただし、MはTi、V、NbおよびSiの1種以上であり、0.25≦x1≦0.75、0.25≦y1≦0.75、0≦z1≦0.5、x1+y1+z1=1、0≦a1≦0.5、0.5≦b1≦1、0≦c1≦0.1、a1+b1+c1=1である。)から構成される。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)