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    SURFACE-COATED CUTTING TOOL
    74.
    发明授权
    SURFACE-COATED CUTTING TOOL 有权

    公开(公告)号：EP2752264B1

    公开(公告)日：2018-07-18

    申请号：EP12828780.2

    申请日：2012-08-31

    申请人： Mitsubishi Materials Corporation

    发明人： TOMITA Kohei ,  OSADA Akira

    IPC分类号： B23B27/14 ,  B23C5/16 ,  C23C16/02 ,  C23C16/40 ,  C23C16/34 ,  C23C16/455 ,  C23C28/04

    CPC分类号： B23B27/14 ,  C23C16/0272 ,  C23C16/029 ,  C23C16/403 ,  C23C16/45523 ,  C23C28/042 ,  C23C28/044 ,  Y10T428/24975

    摘要： A surface-coated cutting tool with a hard coating layer exhibiting an excellent flaking and chipping resistance in a high-speed heavy and intermittent cutting is provided. The vapor-deposited hard coating layer has a lower layer (Ti compound layer) and an upper layer (±-type Al 2 O 3 layer). Thirty to 70 % of Al 2 O 3 crystal grains directly above the lower layer are oriented to (11-20) plane. Forty-five % or more of all of the Al 2 O 3 crystal grains are oriented to (0001) plane. Preferably, the outermost surface layer of the lower layer is an oxygen-containing TiCN layer having oxygen content of 0.5 to 3 atomic % only within the depth region of 500 nm. The ratio of the number of Al 2 O 3 crystal grains directly above the outermost surface layer to the number of crystal grains of the Ti carbonitride layer in the outermost surface layer is 0.01 to 0.5 in the interface.

    COATED CUTTING TOOL
    76.
    发明公开
    COATED CUTTING TOOL 审中-公开
    涂层切削工具

    公开(公告)号：EP3318660A1

    公开(公告)日：2018-05-09

    申请号：EP17199280.3

    申请日：2017-10-30

    申请人： Tungaloy Corporation

    发明人： SATOH, Hiroyuki

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

    CPC分类号： B23B27/14 ,  B23B2228/105 ,  C23C16/34 ,  C23C16/36 ,  C23C16/403 ,  C23C28/042 ,  C23C28/044

    摘要： A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including at least one α-type aluminum oxide layer, wherein, in the α-type aluminum oxide layer, a texture coefficient TC (2,1,10) of a (2,1,10) plane is 1.4 or more. TC 2 1 10 = I 2 1 10 I 0 2 1 10 1 8 ∑ I h k l I 0 h k l − 1 (In formula (1), I (h,k,l) denotes a peak intensity for an (h,k,l) plane in X-ray diffraction of the α-type aluminum oxide layer, l 0 (h,k,l) denotes a standard diffraction intensity for an (h,k,l) plane which is indicated on a JCPDS Card No. 10-0173 for α-type aluminum oxide, and (h,k,l) refers to eight crystal planes of (0,1,2), (1,0,4), (1,1,0), (1,1,3), (0,2,4), (1,1,6), (2,1,4) and (2,1,10).)

    摘要翻译： 1。一种带涂层的切削工具，其特征在于，具有基材和在该基材的表面形成的被覆层，所述被覆层包含至少一个α型氧化铝层，所述α型氧化铝层的结构系数TC（2 ，1,10）为1.4或更大。 （1）中，I（h，k，l）表示α型氧化铝层的X射线衍射中的（h，k，l）面的峰强度， （h，k，l）表示用于α型氧化铝的JCPDS卡号10-0173所示的（h，k，l）平面的标准衍射强度，以及（h，k，l） 指的是（0,1,2），（1,0,4），（1,1,0），（1,1,3），（0,2,4），（1,1 ，6），（2,1,4）和（2,1,10）。）

    SURFACE-COATED CUTTING TOOL WITH RIGID COATING LAYERS EXHIBITING EXCELLENT CHIPPING RESISTANCE
    80.
    发明公开
    SURFACE-COATED CUTTING TOOL WITH RIGID COATING LAYERS EXHIBITING EXCELLENT CHIPPING RESISTANCE 审中-公开
    表面涂层切削刀具具有刚性涂层，表现出优异的耐磨性

    公开(公告)号：EP3269478A1

    公开(公告)日：2018-01-17

    申请号：EP16764886.4

    申请日：2016-03-11

    申请人： Mitsubishi Materials Corporation

    发明人： SATO Kenichi ,  TATSUOKA Sho ,  YAMAGUCHI Kenji

    IPC分类号： B23B27/14 ,  B23C5/16 ,  C23C16/34 ,  C23C16/36

    CPC分类号： B23B27/14 ,  B23B2228/105 ,  C23C16/34 ,  C23C16/347 ,  C23C16/36 ,  C23C16/403 ,  C23C28/042 ,  C23C28/044 ,  C23C28/42 ,  C23C30/005

    摘要： Provided is a coated tool in which a hard coating layer has excellent hardness and toughness and exhibits excellent chipping resistance during high-speed intermittent cutting work. In a surface-coated cutting tool including at least a (Ti,Al) (C,N) layer as a hard coating layer on a surface of the coated tool, the layer includes an upper layer in which a periodic compositional variation in Ti and Al is present in crystal grains having an NaCl type face-centered cubic structure, and a lower layer in which a periodic compositional variation in Ti and Al is not present in crystal grains having an NaCl type face-centered cubic structure, the upper layer has a relatively high Al amount, the lower layer has a relatively low Al amount, a value of I (200)/I(111) of the upper layer is preferably greater than 10, a value of I(200)/I(111) of the lower layer is preferably less than 3, the lower layer is configured to have a composition inclined structure in which the Al amount gradually and continuously increases from a tool body side towards an upper layer side, the lower layer is formed of a layered structure including a plurality of layers, and the Al amount of each layer can gradually and stepwisely increase from the tool body side towards the upper layer side.

    摘要翻译： 本发明提供一种涂层工具，其中硬涂层具有优异的硬度和韧性，并且在高速断续切割加工期间表现出优异的耐崩裂性。 在至少包括（Ti，Al）（C，N）层作为涂覆工具表面上的硬涂层的表面涂覆切削工具中，该层包括上层，其中Ti和 Al存在于具有NaCl型面心立方结构的晶粒中，并且其中Ti和Al的周期性组成变化不存在于具有NaCl型面心立方结构的晶粒中的下层，上层具有 Al含量相对较高，下层的Al含量相对较低，上层的I（200）/ I（111）的值优选大于10，I（200）/ I（111） 优选小于3，下层被构成为具有Al量从工具主体侧朝向上层侧逐渐连续增加的组成倾斜构造，下层由层状结构形成 包括多个层，以及每层的Al量 能够从工具主体侧朝向上层侧逐渐地逐步增大。