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公开(公告)号：EP3590636A1
公开(公告)日：2020-01-08
申请号：EP17898614.7
申请日：2017-07-07
摘要： A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of Al x Ti 1-x , the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of Al y Ti 1-y , the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7, the Al-rich layer exhibiting a maximum peak in the (200) plane when the Al-rich layer is analyzed through X-ray diffraction in a direction normal to a surface of the coating.
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公开(公告)号：EP3590638A1
公开(公告)日：2020-01-08
申请号：EP17898796.2
申请日：2017-07-11
摘要： A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of Al x Ti 1-x , the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of Al y Ti 1-y , the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7, the Al-rich layer exhibiting a maximum peak in the (220) plane when the Al-rich layer is analyzed through X-ray diffraction in a direction normal to a surface of the coating.
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公开(公告)号：EP3590637A1
公开(公告)日：2020-01-08
申请号：EP17898795.4
申请日：2017-07-07
IPC分类号： B23B27/14 , B23B51/00 , B23C5/16 , B23D77/00 , B23F21/00 , B23G5/06 , C23C16/34 , C23C16/36 , C23C16/56
摘要： A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of Al x Ti 1-x , the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of Al y Ti 1-y , the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7, the Al-rich layer exhibiting a maximum peak in the (111) plane when the Al-rich layer is analyzed through X-ray diffraction in a direction normal to a surface of the coating.
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公开(公告)号：EP3957420A1
公开(公告)日：2022-02-23
申请号：EP20790403.8
申请日：2020-02-27
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 Al x Ti 1-x N crystal grains, Al having an atomic ratio x of 0.7 or more and 0.95 or less,
the AlTiN layer including a central portion, when a cross section of the AlTiN layer obtained when cut along a plane including a normal to the rake face and a normal to the flank face is subjected to an electron backscattering diffraction image analysis to determine a crystal orientation of each of the Al x Ti 1-x N crystal grains and a color map is created based thereon, then, in the color map, the central portion at the rake face being occupied in area by (200) oriented crystal grains at a ratio of 80% or more, the central portion at the flank face being occupied in area by (200) oriented crystal grains at a ratio of 80% or more, the central portion at the cutting edge portion being occupied in area by (200) oriented crystal grains at a ratio of 80% or more.-
公开(公告)号：EP3739074A1
公开(公告)日：2020-11-18
申请号：EP18900059.9
申请日：2018-07-31
发明人： KIDO, Yasuki , TABAYASHI, Daiji , IMAMURA, Shinya
摘要： A cemented carbide comprises a first hard phase comprising tungsten carbide particles and a binder phase including Co and Cr. In any surface or any cross section of the cemented carbide, a region in which there is a distance X of 5 nm or less between surfaces respectively of tungsten carbide particles adjacent to each other, with the surfaces facing each other along a length L of 100 nm or more, is referred to as a WC/WC interface, and a ratio C(R)/C(C) has an average value of 0.17 or more, where C(R) and C(C) represent peak values of atomic percentages of Cr and Co, respectively, at a WC/WC interface having a distance X of 1 nm or more and 5 nm or less and having therein an atomic percentage of Co higher than an average value of atomic percentages of Co in the tungsten carbide particles + 2 at%.
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公开(公告)号：EP3360630B1
公开(公告)日：2020-02-19
申请号：EP16809621.2
申请日：2016-06-21
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公开(公告)号：EP3521468A1
公开(公告)日：2019-08-07
申请号：EP18815503.0
申请日：2018-07-02
发明人： KIDO, Yasuki , TABAYASHI, Daiji , IMAMURA, Shinya
摘要： A cemented carbide comprising a first hard phase composed of tungsten carbide particles and a binder phase including Co, the cemented carbide having a ratio Nt/Na of 0.9 or more, where, in any surface or any cross section of the cemented carbide, a region in which there is a distance X of 5 nm or less between surfaces respectively of tungsten carbide particles adjacent to each other, the surfaces facing each other along a length L of 100 nm or more, is referred to as a WC/WC interface, and Na represents a total number of WC/WC interfaces and Nt represents a number of WC/WC interfaces having distance X of 1 nm or more and 5 nm or less and having therein an atomic percentage of Co higher than an average value of atomic percentages of Co in the tungsten carbide particles.
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公开(公告)号：EP3357614B1
公开(公告)日：2019-07-31
申请号：EP16885051.9
申请日：2016-11-30
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公开(公告)号：EP3505280A1
公开(公告)日：2019-07-03
申请号：EP17843135.9
申请日：2017-05-25
摘要： A cutting tool includes a base material. The base material is a cemented carbide or a cermet. A surface of the base material includes a rake face, a flank face, and a cutting edge face connecting the rake face to the flank face. The base material has an oxygen concentration of less than or equal to 1 at.% at a depth position of 0.4 µm from the cutting edge face.
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公开(公告)号：EP3323538B1
公开(公告)日：2019-01-09
申请号：EP15882290.8
申请日：2015-07-13
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