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    SUPER HARD ALLOY AND CUTTING TOOL USING SAME
    1.
    发明公开
    SUPER HARD ALLOY AND CUTTING TOOL USING SAME 审中-公开
    SUPERHARTE LEGIERUNG UND SCHNEIDEWERKZEUG DAMIT

    公开(公告)号：EP2474634A4

    公开(公告)日：2016-11-23

    申请号：EP10809899

    申请日：2010-08-11

    申请人： SUMITOMO ELECTRIC INDUSTRIES ,  SUMITOMO ELEC HARDMETAL CORP ,  ALMT CORP

    发明人： OKUNO TAKUYA ,  HIROSE KAZUHIRO ,  MORIGUCHI HIDEKI ,  IKEGAYA AKIHIKO ,  SASAYA KAZUO ,  YAMAMOTO YOSHIHARU

    IPC分类号： C22C29/08 ,  B23B27/14 ,  C04B35/56 ,  C22C1/05 ,  C22C14/00

    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. Assuming that the average diameter of the WC grain is represented by x (µm), the cemented carbide has a thermal diffusivity X (cm 2 /sec) satisfying X > 0.055x + 0.238. The cemented carbide can further contain one or more elements selected from Cr, Ta, Nb, Zr, and Ti at not less than 0.05 mass % and not more than 5 mass % in total.

    摘要翻译： 提供了热扩散率高，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。 假设WC颗粒的平均直径由x（μm）表示，硬质合金具有满足X> 0.055×+ 0.238的热扩散​​系数X（cm 2 / sec）。 硬质合金还可以含有选自Cr，Ta，Nb，Zr和Ti中的一种或多种元素，其总量不小于0.05质量％且不超过5质量％。

    SURFACE-COATED CUTTING TOOL
    3.
    发明公开
    SURFACE-COATED CUTTING TOOL 有权
    OBERFLÄCHENBESCHICHTETESSCHNEIDWERKZEUG

    公开(公告)号：EP1726390A4

    公开(公告)日：2009-07-01

    申请号：EP05720910

    申请日：2005-03-16

    申请人： SUMITOMO ELEC HARDMETAL CORP ,  SUMITOMO ELECTRIC INDUSTRIES

    发明人： MORIGUCHI HIDEKI ,  FUKUI HARUYO ,  OMORI NAOYA ,  IMAMURA SHINYA ,  SETOYAMA MAKOTO

    IPC分类号： B23B51/00 ,  B23B27/14 ,  B23C5/16 ,  C23C28/00 ,  C23C30/00

    CPC分类号： C23C30/005 ,  Y10T407/27

    摘要： A surface-coated cutting tool which comprises a substrate, an inner coating layer formed on the substrate with a compound comprising Al, at least one element of Cr and V, and one or more elements selected from nitrogen, carbon and oxygen, and an outermost coating layer formed on the inner layer with a carbonitride of TiSi. The surface-coated cutting tool is suitably used for a drill, an end mill, an edge replacement type of tip for milling and turning, a metal saw, a gear cutting tool, a reamer, a tap, and the like, and exhibits the improved resistance to exfoliation and wear, as compared to a conventional tool.

    摘要翻译： 1。一种表面被覆切削工具，其特征在于，具有：基材;在所述基材上形成有含有Al，Cr和V中的至少一种元素以及选自氮，碳和氧中的一种以上元素的化合物的内侧被覆层; 用TiSi的碳氮化物在内层上形成涂层。 表面被覆切削工具适合用于钻头，立铣刀，铣削车削刀头的边缘更换型，金属锯，齿轮切削工具，铰刀，丝锥等，并且具有 与传统工具相比，提高了抗剥落和磨损的能力。