SURFACE-COATED CUTTING TOOL AND METHOD FOR PRODUCING SAME

    公开(公告)号:EP3441167A1

    公开(公告)日:2019-02-13

    申请号:EP16791515.6

    申请日:2016-06-07

    IPC分类号: B23B27/14 C23C16/34

    摘要: A surface-coated cutting tool includes a base material and a coating formed on a surface of the base material. The coating includes a first hard coating layer including crystal grains having a sodium chloride-type crystal structure. The crystal grain has a layered structure in which a first layer composed of nitride or carbonitride of Al x Ti 1-x and a second layer composed of nitride or carbonitride of Al y Ti 1-y are stacked alternately into one or more layers. The first layer each has an atomic ratio x of Al varying in a range of 0.76 or more to less than 1. The second layer each has an atomic ratio y of Al varying in a range of 0.45 or more to less than 0.76. The largest value of difference between the atomic ratio x and the atomic ratio y is 0.05≤x-y≤0.5. The first layer and the second layer adjacent to each other have a total thickness of 3 to 30 nm.

    SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREFOR
    53.
    发明公开
    SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREFOR 审中-公开
    表面涂层切削工具及其制造方法

    公开(公告)号:EP3269479A1

    公开(公告)日:2018-01-17

    申请号:EP17774043.8

    申请日:2017-03-02

    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. Each of the one or plurality of the first layers is composed of a nitride or carbonitride of Al a Cr b M1 1 - a-b . Each of the one or plurality of the second layers is composed of a nitride or carbonitride of Al c Ti d M2 1-c-d . Each of the one or plurality of the third layers is composed of a nitride or carbonitride of Al e Ti f M3 1-e-f . Each of the one or plurality of the fourth layers is composed of a nitride or carbonitride of Al g Ti h M4 1-g-h . Each of the M1, the M2, the M3, and the M4 is one or more elements selected from a group consisting of a group 4 element, a group 5 element, a group 6 element except Cr and Ti in a periodic table, Si, and B.

    摘要翻译: 表面被覆切削工具包括基材和形成在该基材的表面上的涂膜。 涂膜包括形成在第一交替层上的第一交替层和第二交替层。 第一交替层包括第一和第二层。 第二交替层包括第三和第四层。 一个或多个第一层和一个或多个第二层交替层叠,并且一个或多个第三层和一个或多个第四层交替层叠。 一个或多个第一层中的每一个由AlaCrbM11-a-b的氮化物或碳氮化物组成。 一个或多个第二层中的每一个由AlcTidM21-c-d的氮化物或碳氮化物组成。 一个或多个第三层中的每一个由AleTifM31-e-f的氮化物或碳氮化物组成。 一个或多个第四层中的每一个由AlgTihM41-g-h的氮化物或碳氮化物组成。 M1,M2,M3和M4中的每一个是选自由元素周期表中的第4族元素,第5族元素,除Cr和Ti以外的第6族元素组成的组中的一种或多种元素,Si, 和B.

    SURFACE-COATED CUTTING TOOL
    56.
    发明公开
    SURFACE-COATED CUTTING TOOL 审中-公开
    表面涂层切削工具

    公开(公告)号:EP3064610A1

    公开(公告)日:2016-09-07

    申请号:EP16166035.2

    申请日:2013-04-11

    摘要: A surface-coated cutting tool comprising a base material and a coating formed on the base material, said coating including one or two or more layers, a layer among said layers that abuts on said base material being a TiN layer, said base material being made of a cemented carbide, characterized in that said TiN layer contains C and Co together with TiN, said C and said Co each have a concentration distribution in a thickness direction of said TiN layer, the concentration distribution of said C includes a region where the concentration of said C decreases in a direction from said base material toward a surface of said coating, the concentration distribution of said Co includes a region where the concentration of said Co decreases in a direction from said base material toward a surface of said coating, and wherein the concentration distribution of said C has a difference between a maximum concentration and a minimum concentration of said C of 10 atomic % or more.

    摘要翻译: 1。一种表面被覆切削工具,其特征在于,具备基材和在该基材上形成的被覆层,所述被覆层包含1层或2层以上的层,所述层中与所述基材抵接的层为TiN层, 其特征在于,所述TiN层含有C和Co以及TiN,所述C和所述Co各自在所述TiN层的厚度方向上具有浓度分布,所述C的浓度分布包括浓度 所述C的浓度分布在从所述基材朝向所述涂层的表面的方向上减小时,所述Co的浓度分布包括所述Co的浓度在从所述基材朝向所述涂层的表面的方向上降低的区域,并且其中, 所述C的浓度分布具有所述C的最大浓度和最小浓度之差为10原子%以上。

    SURFACE-COATED CUTTING TOOL
    58.
    发明公开
    SURFACE-COATED CUTTING TOOL 有权
    表面涂层切削工具

    公开(公告)号:EP2517810A1

    公开(公告)日:2012-10-31

    申请号:EP10839163.2

    申请日:2010-12-03

    摘要: Provided is a surface-coated cutting tool combining superior heat resistance, superior wear resistance, and superior lubricity with high adhesion between a substrate and a coating. A surface-coated cutting tool of the present invention includes a substrate and a coating formed on the substrate, and the coating is characterized in that the coating is formed by physical vapor deposition and includes one or more layers, that at least one of the one or more layers is a first coating layer, that the first coating layer contains aluminum and nitrogen, has a thermal effusivity of 2,000 to 5,000 J·sec -1 ·m -1 ·K -1 , and has a thickness of 0.2 to 5 µm, that the first coating layer includes an amorphous region and a crystalline region in order from the substrate side, that the amorphous region is amorphous and has a thickness of 0.01 to 2 µm, and that the crystalline region has a crystal structure including a hexagonal structure.

    摘要翻译: 本发明提供一种表面被覆切削工具,其具有优异的耐热性,优异的耐磨损性和优异的润滑性,并且在基材和涂层之间具有高附着力。 本发明的表面被覆切削工具具备基材和在该基材上形成的被膜,所述被膜的特征在于,所述被膜通过物理蒸镀形成,包含一层以上的层,所述一层以上 或更多层为第一涂层,第一涂层含有铝和氮,热喷射率为2,000至5,000J·sec-1·m-1·K-1,厚度为0.2至5μm ,第一涂层从衬底侧开始依次包括非晶区域和结晶区域,非晶区域为非晶态且具有0.01至2μm的厚度,并且结晶区域具有包括六方结构的晶体结构 。

    SURFACE-COATED CUTTING TOOL
    59.
    发明公开
    SURFACE-COATED CUTTING TOOL 有权
    表面涂层切削工具

    公开(公告)号:EP2058068A1

    公开(公告)日:2009-05-13

    申请号:EP07792194.8

    申请日:2007-08-08

    IPC分类号: B23B27/14 B23B51/00 B23C5/16

    摘要: A surface-coated cutting tool includes a coating layer (108) formed on a substrate (104), wherein assuming that the average thickness of the coating layer (108) on a first surface (106) and a second surface (107) of the substrate (104) is A, a difference between the maximum and minimum thicknesses of the coating layer (108) is larger than 0.04 × A. Also, a surface-coated cutting tool includes a coating layer (108) formed on a substrate (104), wherein assuming that the average thickness of the coating layer (108) on a first surface (106) of the substrate (104) is B1, and the average thickness of the coating layer (108) on a second surface (107) of the substrate (104) is B2, a value obtained by dividing an absolute difference value between B1 and B2 by a larger value of B1 and B2 is larger than 0.04.

    摘要翻译: 一种表面涂覆的切削工具,包括形成在基底(104)上的涂层(108),其中假设涂层(108)的第一表面(106)和第二表面(107)的平均厚度 (108)的最大厚度和最小厚度之差大于0.04×A。此外,表面涂覆的切削工具包括形成在衬底(104)上的涂层(108) ),其中假设衬底(104)的第一表面(106)上的涂层(108)的平均厚度为B1,并且第二表面(107)上的涂层(108)的平均厚度为 衬底(104)为B2,将B1和B2之间的绝对差值除以B1和B2的较大值所获得的值大于0.04。