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    CEMENTED CARBIDE AND CUTTING TOOL USING SAME
    2.
    发明申请
    CEMENTED CARBIDE AND CUTTING TOOL USING SAME 有权
    使用相同的碳化物和切割工具

    公开(公告)号：US20120144753A1

    公开(公告)日：2012-06-14

    申请号：US13390841

    申请日：2010-08-11

    申请人： Takuya Okuno ,  Kazuhiro Hirose ,  Hideki Moriguchi ,  Akihiko Ikegaya ,  Kazuo Sasaya ,  Yoshiharu Yamamoto

    发明人： Takuya Okuno ,  Kazuhiro Hirose ,  Hideki Moriguchi ,  Akihiko Ikegaya ,  Kazuo Sasaya ,  Yoshiharu Yamamoto

    IPC分类号： B24D3/04 ,  B24D3/08

    CPC分类号： C22C29/08 ,  C22C14/00

    摘要： There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.

    摘要翻译： 提供了热扩散性高且耐磨性优异的硬质合金，以及包括由该硬质合金形成的基材的切削工具。 硬质合金是WC基硬质合金，其中主要由WC颗粒构成的硬质相主要由Co组成的粘合剂相结合，并用于切削工具。 粘结相基本上由Co或Co和Ni构成。 Co和Ni的总含量不小于4.5质量％且不大于15质量％。 在这种硬质合金中，WC颗粒的平均直径不小于0.4μm且不大于4μm。

    Cemented carbide and cutting tool using same
    3.
    发明授权
    Cemented carbide and cutting tool using same 有权
    硬质合金和切削刀具使用相同

    公开(公告)号：US08801816B2

    公开(公告)日：2014-08-12

    申请号：US13390841

    申请日：2010-08-11

    申请人： Takuya Okuno ,  Kazuhiro Hirose ,  Hideki Moriguchi ,  Akihiko Ikegaya ,  Kazuo Sasaya ,  Yoshiharu Yamamoto

    发明人： Takuya Okuno ,  Kazuhiro Hirose ,  Hideki Moriguchi ,  Akihiko Ikegaya ,  Kazuo Sasaya ,  Yoshiharu Yamamoto

    IPC分类号： B24B1/00 ,  B24D11/00

    CPC分类号： C22C29/08 ,  C22C14/00

    摘要： There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.

    摘要翻译： 提供了热扩散性高且耐磨性优异的硬质合金，以及包括由该硬质合金形成的基材的切削工具。 硬质合金是WC基硬质合金，其中主要由WC颗粒构成的硬质相主要由Co组成的粘合剂相结合，并用于切削工具。 粘结相基本上由Co或Co和Ni构成。 Co和Ni的总含量不小于4.5质量％且不大于15质量％。 在这种硬质合金中，WC颗粒的平均直径不小于0.4μm且不大于4μm。

    Coated cemented carbide cutting tool
    5.
    发明授权
    Coated cemented carbide cutting tool 有权
    涂层硬质合金刀具

    公开(公告)号：US06293739B1

    公开(公告)日：2001-09-25

    申请号：US09423353

    申请日：1999-11-23

    申请人： Katsuya Uchino ,  Akihiko Ikegaya

    发明人： Katsuya Uchino ,  Akihiko Ikegaya

    IPC分类号： B23B2714

    CPC分类号： C23C30/005 ,  Y10T407/26 ,  Y10T407/27 ,  Y10T428/24975

    摘要： The invention is to prolong the life time of tools dramatically by (1) considerably improving the flaking resistance of the coating layer at the time of cutting, (2) increasing the wear resistance and crater resistance of the coating layer itself, and (3) enhancing the breakage strength of the coating layer in comparison with the conventional coating cutting tools. In order to achieve the object, the coated cemented carbide of the invention has the following structure in the coating layer on the surface of the cemented carbides: The outer layer has an Al2O3 layer practically having an &agr;-type crystal structure. The Al2O3 layer has a region where &agr;-type and &kgr;-type crystal grains coexist in the first row of the crystal grains that grow on the inner layer. In addition to that, the crystal grains of &agr;-Al2O3 in the region include no pores.

    摘要翻译： 本发明是通过（1）大大提高切割时涂层的耐剥落性，（2）提高涂层本身的耐磨性和耐火蚀性，从而显着延长刀具的使用寿命;（3） 与常规的涂层切割工具相比，增强了涂层的断裂强度。 为了实现该目的，本发明的涂覆硬质合金在硬质合金表面的涂层中具有以下结构：外层具有实际上具有α型晶体结构的Al 2 O 3层。 Al 2 O 3层具有在内层上生长的第一排晶粒中的α型和κ型晶粒共存的区域。 除此之外，该区域中的α-Al 2 O 3的晶粒不包括孔。

    Coated hard metal tool
    6.
    发明授权
    Coated hard metal tool 失效
    涂硬质工具

    公开(公告)号：US6082936A

    公开(公告)日：2000-07-04

    申请号：US871367

    申请日：1997-06-09

    申请人： Hideki Moriguchi ,  Akihiko Ikegaya

    发明人： Hideki Moriguchi ,  Akihiko Ikegaya

    IPC分类号： B23B27/14 ,  B23P15/28 ,  C23C30/00

    CPC分类号： B23B27/145 ,  B23P15/28 ,  C23C30/005 ,  B23B2200/242 ,  B23B2200/245 ,  Y10T407/26 ,  Y10T407/27 ,  Y10T407/28

    摘要： A coated hard metal tool includes a hard metal base material having an edged part on an insert ridge portion defining a connecting portion between a flank and a rake face, and a coating film applied to a surface of the hard metal base material. The coating film has a surface-treated part on the insert ridge portion. The coating film is so formed that Rc1/(Rs1+d) 1.0, wherein Rs1 represents the radius of curvature of a convex curved surface formed on the boundary between the flank and the edged part on the surface of the hard metal base material, Rc1 represents the radius of curvature of a convex curved surface formed on the boundary between the flank and the surface-treated part, Rs2 represents the radius of curvature of a convex curved surface formed on the boundary between the rake face and the edged part on the surface of the hard metal base material, Rc2 represents the radius of curvature of a convex curved surface formed on the boundary between the rake face and the surface-treated part, and d represents the average thickness of the coating film in a region other than the edged part. According to this structure, a coated hard metal tool having a long life which is improved in wear resistance with no damage on its breakage resistance can be provided.

    摘要翻译： 涂覆的硬金属工具包括硬质金属基材，其具有限定在侧面和前刀面之间的连接部分的插入脊部分上的边缘部分，以及施加到硬质金属基材的表面的涂膜。 涂膜在插入脊部分上具有表面处理部分。 该涂膜形成为Rc1 /（Rs1 + d）<1.0和Rc2 /（Rs2 + d）> 1.0，其中Rs1表示形成在侧面和边缘部分之间的边界上的凸曲面的曲率半径 在硬质金属基材的表面上，Rc1表示形成在侧面和表面处理部分之间的边界上的凸曲面的曲率半径，Rs2表示形成在边界上的凸曲面的曲率半径 在硬质金属基材的表面上的前刀面和边缘部分之间，Rc2表示形成在前刀面和表面处理部之间的边界上的凸曲面的曲率半径，d表示平均厚度 在除了边缘部分之外的区域中的涂膜。 根据该结构，可以提供寿命长的涂层硬质金属工具，其耐磨性提高，其耐破坏性不受损害。

    Gaseous phase synthesized diamond and method for synthesizing same
    9.
    发明授权
    Gaseous phase synthesized diamond and method for synthesizing same 失效
    气相合成金刚石及其合成方法

    公开(公告)号：US4900628A

    公开(公告)日：1990-02-13

    申请号：US76721

    申请日：1987-07-22

    申请人： Akihiko Ikegaya ,  Masaaki Tobioka

    发明人： Akihiko Ikegaya ,  Masaaki Tobioka

    IPC分类号： C30B25/02

    CPC分类号： C30B25/02 ,  C30B29/04 ,  Y10T428/30

    摘要： The present invention relates to gaseous phase synthesized diamond and a method of synthesizing the same. In order to obtain crystalline diamond having remarkably high completeness and hardly containing carbon having a construction other than that of diamond, raw material gases are thermally activated by a thermoelectron-radiating material heated at an extremely high temperature, the thermoelectron-radiating material being connected to a negative pole while a substrate to be coated is connected to a positive pole, by the use of a direct current power source, a plasma being formed between the thermoelectron-radiating material and the substrate by applying a direct current voltage, and a diamond film having an average particle size of 2 microns or less, compression residual stress and electric resistance of 10.sup.8 ohm.cm or more being formed on the substrate by using the activation by the thermoelectron-radiating material together with the activation by the formation of DC plasma.In addition, homogeneous diamond particles uniform in shape can be obtained by using this method.