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公开(公告)号：US11524339B2
公开(公告)日：2022-12-13
申请号：US16636785
申请日：2019-06-26
发明人： Keizo Tanaka , Shinya Imamura , Haruyo Fukui
摘要： A cutting tool incudes a substrate and a coating that coats a surface of the substrate, the coating including a multilayer structure layer composed of at least one layer A and at least one layer B alternately deposited from a side closer to the substrate toward a side closer to a surface, the layer A having an average composition of AlxCr(1-x)N, the layer B being composed of TiyAlzSi(1-y-z)N, the layer A being composed of a domain region and a matrix region, the domain region having a composition ratio of Cr larger than that of Cr of the matrix region, wherein x has a range of 0.5≤x≤0.8, y has a range of 0.5≤y
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公开(公告)号：US11534836B2
公开(公告)日：2022-12-27
申请号：US16955866
申请日：2019-01-30
发明人： Kouhei Yoshimura , Haruyo Fukui , Makoto Setoyama , Keizo Tanaka
摘要： A surface-coated cutting tool includes: a substrate including a rake face and a flank face; a first coating film that coats the rake face; and a second coating film that coats the flank face, wherein the first coating film includes a first composite nitride layer at a region d1 on the rake face, the second coating film includes a second composite nitride layer at a region d2 on the flank face, the first composite nitride layer includes Ti1-x1-y1Alx1Tay1Cα1Nβ1, the second composite nitride layer includes Ti1-x2-y2Alx2Tay2Cα2Nβ2.
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公开(公告)号：US20190160546A1
公开(公告)日：2019-05-30
申请号：US16092499
申请日：2017-03-03
摘要： A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25≤a≤0.45, 0.55≤b≤0.75, 0≤c≤0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35≤d≤0.55, 0.45≤e≤0.65, 0≤f≤0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05≤d−a≤0.2 and 0.05≤b−e≤0.2.
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公开(公告)号：US11992882B2
公开(公告)日：2024-05-28
申请号：US17793036
申请日：2020-04-24
发明人： Haruyo Fukui , Daiji Tabayashi , Yoshihiro Saito , Kazuya Tokuda , Yoshiharu Utsumi , Hajime Takamatsu
CPC分类号： B23B27/14 , C22C29/08 , C23C14/0605 , C23C30/005 , B23B2226/125 , B23B2228/105 , Y10T428/30
摘要： Provided is a cutting tool that can have a long tool life even when used to cut soft metals in particular. The cutting tool comprises a base body and a hard carbon film arranged on the base body, the hard carbon film includes an amorphous phase and a graphite phase, the density of the hard carbon film is no less than 2.5 g/cm3 and no more than 3.5 g/cm3, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the average coordination number of the amorphous phase is no less than 2.5 and no more than 4.
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公开(公告)号：US11872636B2
公开(公告)日：2024-01-16
申请号：US15567149
申请日：2017-03-02
IPC分类号： B23B27/14 , C23C14/32 , C23C14/35 , C23C14/06 , C23C30/00 , C23C28/00 , C23C28/04 , C23C14/02 , C23C14/00 , B23F21/00 , B23G5/06
CPC分类号： B23B27/14 , C23C14/0021 , C23C14/024 , C23C14/0641 , C23C14/0664 , C23C14/325 , C23C14/35 , C23C28/044 , C23C28/42 , C23C28/44 , C23C30/005 , B23B2228/105 , B23F21/00 , B23G5/06
摘要： A surface-coated cutting tool includes a base material and a coating film formed on a surface of the base material. The coating film includes a first alternating layer and a second alternating layer formed on the first alternating layer. The first alternating layer includes first and second layers. The second alternating layer includes third and fourth layers. One or a plurality of the first layers and one or a plurality of the second layers are layered alternately, and one or a plurality of the third layers and one or a plurality of the fourth layers are layered alternately.
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公开(公告)号：US11370033B2
公开(公告)日：2022-06-28
申请号：US16957956
申请日：2018-10-30
发明人： Haruyo Fukui , Makoto Setoyama , Keizo Tanaka , Kouhei Yoshimura
摘要： A surface coated cutting tool comprises a base material and a coating layer that coats the base material, the coating layer including an alternate layer composed of a first unit layer and a second unit layer alternately stacked, the first unit layer being composed of a nitride containing aluminum and zirconium, in the first unit layer, when the total number of metal atoms constituting the first unit layer is represented as 1, a ratio thereto of the number of atoms of the zirconium being not less than 0.65 and not more than 0.95, the second unit layer being composed of a nitride containing titanium and silicon, in the second unit layer, when the total number of metal atoms constituting the second unit layer is represented as 1, a ratio thereto of the number of atoms of the silicon being larger than 0 and not more than 0.20.
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公开(公告)号：US20210001410A1
公开(公告)日：2021-01-07
申请号：US16494125
申请日：2019-03-08
发明人： Hiroki Takeshita , Makoto Setoyama , Haruyo Fukui
摘要： A surface-coated cutting tool includes a base material and a coating film provided on a surface of the base material, wherein the coating film includes a first alternating layer provided on the base material and a second alternating layer provided on the first alternating layer, the first alternating layer includes A and B layers, the second alternating layer includes C and D layers, each of one or plurality of the A layers is composed of a nitride or carbonitride of AlaCrbM1(l-a-b), each of one or plurality of the B layers is composed of a nitride or carbonitride of AlcTidM2(l-c-d), each of one or plurality of the C layers is composed of a nitride or carbonitride of TieSifM3(l-e-f), and each of one or plurality of the D layers is composed of a nitride or carbonitride of TigSihM4(l-g-h).
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公开(公告)号：US11426801B2
公开(公告)日：2022-08-30
申请号：US17262751
申请日：2020-07-16
发明人： Momoko Iida , Makoto Setoyama , Haruyo Fukui
摘要： A cutting tool comprises a rake face and a flank face, the cutting tool being composed of a substrate made of a cubic boron nitride sintered material and a coating provided on the substrate, the coating including a MAlN layer, the MAlN layer including crystal grains of MxAl1-xN in the cubic crystal system, nF
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公开(公告)号：US11167357B2
公开(公告)日：2021-11-09
申请号：US16092499
申请日：2017-03-03
摘要： A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25≤a≤0.45, 0.55≤b≤0.75, 0≤c≤0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35≤d≤0.55, 0.45≤e≤0.65, 0≤f≤0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05≤d−a≤0.2 and 0.05≤b−e≤0.2.
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公开(公告)号：US10994339B2
公开(公告)日：2021-05-04
申请号：US16067201
申请日：2017-11-22
发明人： Keizo Tanaka , Makoto Setoyama , Haruyo Fukui , Akira Kobayashi , Koji Kuramochi
摘要： A surface-coated cutting tool includes a substrate composed of cemented carbide and a coating film. The coating film includes an intermediate layer in contact with the substrate and an upper layer formed on the intermediate layer. The upper layer is made up of a single layer consisting of an upper base layer which is a layer in contact with the intermediate layer or multiple layers constituted of two or more layers. A mismatch in lattice interplanar spacing in an interface region between the substrate and the intermediate layer is not higher than 65% of a theoretical value of a mismatch in lattice interplanar spacing between the substrate and the upper base layer. A mismatch in lattice interplanar spacing in an interface region between the intermediate layer and the upper base layer is not higher than 65% of the theoretical value of the mismatch in lattice interplanar spacing between the substrate and the upper base layer.
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