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11. 发明授权

US11203068B2 Cutting tool 有权
公开(公告)号：US11203068B2
公开(公告)日：2021-12-21
申请号：US17051463
申请日：2020-02-27
申请人： SUMITOMO ELECTRIC HARDMETAL CORP.
发明人： Yasuki Kido , Anongsack Paseuth , Susumu Okuno , Shinya Imamura
IPC分类号： B23B27/14 , B23C5/16 , C23C16/34 , C23C28/04
摘要： A cutting tool including a rake face, a flank face, and a cutting edge portion, comprising a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi1-xN crystal grains, A1 having an atomic ratio x of 0.7 or more and less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.

12. 发明授权

US11104986B2 Metal cutting tool with multi-layer coating 有权
公开(公告)号：US11104986B2
公开(公告)日：2021-08-31
申请号：US16614408
申请日：2018-05-15
申请人： WALTER AG
发明人： Ulrich Albers
IPC分类号： C23C14/06 , B23C5/16 , C23C14/02 , C23C14/32
摘要： A metal cutting tool includes a main body made of cemented carbide, cermet, ceramic, steel or high-speed steel, and a multi-layer wear protection coating. The wear protection coating includes a lower layer having an overall composition of Tim Al(1-m) N with 0.25

13. 发明授权

US11104979B2 Three dimensional printing of cermet or cemented carbide 有权
公开(公告)号：US11104979B2
公开(公告)日：2021-08-31
申请号：US16093541
申请日：2017-04-06
申请人： SANDVIK INTELLECTUAL PROPERTY AB
发明人： Carl-Johan Maderud , John De Flon
IPC分类号： B22F3/15 , C22C29/06 , C22C1/05 , B22F10/10 , B33Y10/00 , B33Y70/00 , B22F1/00 , B23B27/14 , B23C5/16 , B24D3/00 , B22F3/10 , E21C35/183 , E21B10/46 , B33Y80/00 , B22F5/00
摘要： The present invention relates to a powder mixture for three-dimensional (3D) printing of a cermet or a cemented carbide body. The powder mixture includes 65-85 wt % of porous cemented carbide or cermet particles of a median particle size (D50) of 10-35 μm, and 15-35 wt % of a dense cemented carbide or cermet particles of a median particle size (D50) of 3-10 μm. The present invention also relates to a method of making a cermet or cemented carbide body, the method including the steps of forming the powder mixture, 3D printing a body using the powder mixture and a printing binder and thereby forming a 3D printed cermet or cemented carbide green body and sintering the green body and to form a cermet or cemented carbide body.

14. 发明申请

US20210245259A1 CUTTING TOOL 有权
公开(公告)号：US20210245259A1
公开(公告)日：2021-08-12
申请号：US17254411
申请日：2020-06-22
申请人： SUMITOMO ELECTRIC HARDMETAL CORP.
发明人： Yasuki KIDO , Anongsack PASEUTH , Susumu OKUNO
IPC分类号： B23B27/14 , C23C16/34 , C23C28/04 , B23C5/16 , B23B51/00
摘要： A cutting tool comprises a substrate and a coating layer provided on the substrate, the coating layer including a multilayer structure layer composed of a first unit layer and a second unit layer, and a lone layer, the lone layer including cubic TizAl1-zN crystal grains, an atomic ratio z of Ti in the TizAl1-zN being 0.55 or more and 0.7 or less, the lone layer having a thickness with an average value of 2.5 nm or more and 10 nm or less, the multilayer structure layer having a thickness with an average value of 10 nm or more and 45 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 20 nm to 50 nm, a maximum value of 40 nm to 60 nm, and a minimum value of 10 nm to 30 nm.

15. 发明授权

US11084103B2 Coated cutting tool 有权
公开(公告)号：US11084103B2
公开(公告)日：2021-08-10
申请号：US15765955
申请日：2016-09-29
申请人： TUNGALOY CORPORATION
发明人： Yusuke Hirano , Shigeki Tanaka
IPC分类号： B23B27/14 , C04B41/00 , C04B41/52 , C04B41/50 , B23B51/00 , B23C5/16 , C04B41/87 , C23C28/04 , C23C28/00 , C23C14/06 , C23C14/32 , C23C30/00
摘要： A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by formula (1) below: (TixMySiz)N (1) [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W and Al, x denotes an atomic ratio of Ti based on a total of Ti, an element denoted by M and Si, y denotes an atomic ratio of the element denoted by M based on a total of Ti, the element denoted by M and Si, z denotes an atomic ratio of Si based on a total of Ti, the element denoted by M and Si, x satisfies 0.20≤x≤0.50, y satisfies 0.20≤y≤0.50, z satisfies 0.03≤z≤0.30, and x, y and z satisfy x+y+z=1]; and a compound layer containing a compound having a composition represented by formula (2) below: (TiaMbSic)N (2) [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W and Al, a denotes an atomic ratio of Ti based on a total of Ti, an element denoted by M and Si, b denotes an atomic ratio of the element denoted by M based on a total of Ti, the element denoted by M and Si, c denotes an atomic ratio of Si based on a total of Ti, the element denoted by M and Si, a satisfies 0.20≤a≤0.49, b satisfies 0.21≤b≤0.50, c satisfies 0.04≤c≤0.30, and a, b and c satisfy a+b+c=1]; an absolute value of a difference between an amount of a specific metal element contained in a compound layer which constitutes the alternating laminate structure based on an amount of all the metal elements contained therein and an amount of the specific metal element contained in another compound layer which is adjacent to the compound layer and which constitutes the alternating laminate structure based on an amount of all the metal elements contained therein, is more than 0 atom % and less than 5 atom %; and an average thickness of each of the compound layers is from 1 nm or more to 50 nm or less, and an average thickness of the alternating laminate structure is from 1.0 μm or more to 15.0 μm or less.

16. 发明授权

US11014165B2 Cutting tool 有权
公开(公告)号：US11014165B2
公开(公告)日：2021-05-25
申请号：US17042951
申请日：2019-11-01
申请人： SUMITOMO ELECTRIC HARDMETAL CORP.
发明人： Yuki Rikiso , Susumu Okuno , Anongsack Paseuth , Shinya Imamura
IPC分类号： B23B27/14 , B23C5/16 , C23C16/30 , C23C16/40 , C23C16/32 , C23C28/00 , C23C16/34
摘要： A cutting tool includes a substrate and a coating that covers the substrate, the coating includes an α-Al2O3 layer, and the α-Al2O3 layer has an orientation index TC(0 0 12) of a (0 0 12) plane not smaller than 4 and not larger than 8.5, an orientation index TC(2 0 14) of a (2 0 14) plane not smaller than 0.5 and not larger than 3, and a total of the orientation index TC(0 0 12) and the orientation index TC(2 0 14) not larger than 9.

17. 发明授权

US11007580B2 Cutting tool 有权
公开(公告)号：US11007580B2
公开(公告)日：2021-05-18
申请号：US16969387
申请日：2020-02-27
申请人： SUMITOMO ELECTRIC HARDMETAL CORP.
发明人： Yasuki Kido , Anongsack Paseuth , Susumu Okuno , Shinya Imamura
IPC分类号： B23B27/18 , B23C5/16 , C23C16/36 , C23C28/04 , C23C16/30 , B23B51/00
摘要： A cutting tool including a rake face, a flank face, and a cutting edge portion, comprising a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi1-xN crystal grains, Al having an atomic ratio x of 0.7 or more and less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.

18. 发明授权

US11000906B2 Endmill body and radius end mill 有权
公开(公告)号：US11000906B2
公开(公告)日：2021-05-11
申请号：US16312447
申请日：2017-06-29
申请人： NGK SPARK PLUG CO., LTD.
发明人： Shusuke Kitagawa , Yuki Hatano
IPC分类号： B23C5/10 , B23C5/16
摘要： In an end mill body made of ceramic, a corner R rake face is formed in such a manner as to contain a point B and at least a region B, not a region A located on a side toward an end cutting edge. In other words, a first end portion of a cutting edge on a peripheral edge portion of the corner R rake face is formed on a peripheral edge of the region B of a corner R cutting edge, and a second end portion of the cutting edge reaches at least the point B. As a result, partial breakage of the corner R cutting edge is unlikely to occur in the course of cutting. That is, since the corner R rake face is formed in such a manner as to start from the first end portion located apart from a point A, which is the intersection of the end cutting edge and the corner R cutting edge, and such that the second end portion reaches the point B, a large cutting load is unlikely to be imposed on the starting point of the corner R rake face. Therefore, the corner R cutting edge is unlikely to be chipped.

19. 发明授权

US10967433B2 Cutting tool 有权
公开(公告)号：US10967433B2
公开(公告)日：2021-04-06
申请号：US16981099
申请日：2019-12-12
申请人： SUMITOMO ELECTRIC HARDMETAL CORP.
发明人： Susumu Okuno , Shinya Imamura , Yuki Rikiso , Yasuki Kido , Fumiyoshi Kobayashi
IPC分类号： B24D3/02 , B23B27/14 , B23C5/16 , B24D3/00 , B24D11/00 , B24D18/00 , C09K3/14
摘要： A cutting tool comprises a substrate and a coating that coats the substrate, the coating including an α-alumina layer, the α-alumina layer including crystal grains of α-alumina, the α-alumina layer including a lower portion and an upper portion, the upper portion being occupied in area at a ratio of 50% or more by crystal grains of α-alumina having (006) plane with a normal thereto having a direction within ±15° with respect to a direction of a normal to the second interface, the lower portion being occupied in area at a ratio of 5% or more and less than 50% by crystal grains of α-alumina having (012) plane, (104) plane, (110) plane, (113) plane, (116) plane, (300) plane, (214) plane and (006) plane each with a normal thereto having a direction within ±15° with respect to the direction of the normal to the second interface.

20. 发明申请

US20210025038A1 CEMENTED CARBIDE, CUTTING TOOL CONTAINING THE SAME, AND METHOD OF MANUFACTURING CEMENTED CARBIDE 有权
公开(公告)号：US20210025038A1
公开(公告)日：2021-01-28
申请号：US16606940
申请日：2019-01-29
申请人： Sumitomo Electric Industries, Ltd.
发明人： Kosuke FUKAE , Hiroaki GOTOU , Masato MICHIUCHI , Keiichi TSUDA
IPC分类号： C22C29/08 , C22C1/05 , B23C5/16 , B23B27/14
摘要： Cemented carbide contains first hard-phase particles containing WC, second hard-phase particles which contain carbonitride containing at least Ti and Nb, and a metallic binder phase containing an iron-group element. The second hard-phase particle includes a granular core portion. The core portion contains composite carbonitride expressed as Ti1−X−YNbXWYC1−ZNZ, where X is not smaller than 0.1 and not greater than 0.2, Y is not smaller than 0 and not greater than 0.05, and Z is not smaller than 0.3 and not greater than 0.6. The cemented carbide has an absolute value of a difference not greater than 10, between a ratio (%) of an area occupied by the second hard-phase particles at a surface thereof and a ratio (%) of an area occupied by the second hard-phase particles in a region extending from the surface by 0.5 mm in a direction of depth.

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