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    Cubic boron nitride sintered compact for end mill
    2.
    发明授权
    Cubic boron nitride sintered compact for end mill 失效
    用于立铣刀的立方氮化硼烧结体

    公开(公告)号：US4693746A

    公开(公告)日：1987-09-15

    申请号：US567

    申请日：1987-01-05

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： C22C1/05 ,  B22F3/14 ,  B22F3/15 ,  B24D3/06 ,  C09K3/14 ,  C22C26/00 ,  C22C29/00 ,  C22C29/02 ,  C22C29/04 ,  C22C29/14 ,  C22C29/16

    CPC分类号： C22C29/00 ,  C22C26/00

    摘要： A cBN sintered compact for an end mill obtained by sintering mixed powder prepared by mixing about 35 to 50 percent by volume of cubic boron nitride powder smaller than about 2 .mu.m in average particle size with about 50 to 65 percent by volume of a binder under cBN-stable superhigh pressure conditions. The binder contains about 20 to 30 percent by weight of Al and one or more Ti compounds selected from a group of TiN.sub.z, Ti(C,N).sub.z, TiC.sub.z, (Ti,M)C.sub.z, (Ti,M) (C,N).sub.z and (Ti,M)N.sub.z (where M indicates a transition metal element of the group IVa, Va or VIa of the periodic table excepting Ti and z is within a range of about 0.7.ltoreq.z.ltoreq. about 0.85) and the atomic ratio of Ti contained in the binder to the transition metal element of the group IVa, Va or VIa of the periodic table excepting Ti is about 2/3 to 97/100 while the total tungsten concentration of tungsten contained in the form of at least one of tungsten carbide or the Ti compound described above in the binder is about 5 to 20 percent by weight.

    摘要翻译： 将通过混合约35〜50体积％的平均粒径约为2μm的立方氮化硼粉末与约50〜65体积％的粘合剂混合而制备的混合粉末的cBN烧结体， cBN稳定超高压条件。 粘合剂含有约20〜30重量％的Al和选自TiNz，Ti（C，N）z，TiCz，（Ti，M）Cz，（Ti，M）（C， N）z和（Ti，M）Nz（其中M表示IVa族的过渡金属元素，除了Ti和z之外的周期表的Va或VIa在约0.7

    Hard sintered body for tools
    4.
    发明授权
    Hard sintered body for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US5041399A

    公开(公告)日：1991-08-20

    申请号：US451441

    申请日：1989-12-13

    申请人： Tomohiro Fukaya ,  Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tomohiro Fukaya ,  Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： B01J3/06 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/02 ,  C22C29/04 ,  C22C29/16

    CPC分类号： C04B35/5831 ,  B01J3/062 ,  C22C26/00 ,  C22C29/02 ,  C22C29/04 ,  C22C29/16 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005

    摘要： A hard sintered body for tools is obtained by sintering under a superhigh pressure, a sinter powder mixture containing at least 20 percent by volume and not more than 70 percent by volume of cubic boron nitride powder and having a remainder formed of a binder powder mixture. The binder contains at least 2 percent by weight and not more than 20 percent by weight of Al and at least 2 percent by weight and not more than 20 percent by weight of W, and has a remainder formed of a Ti compound or compounds. The atomic ratio of Ti contained in the binder to a transition metal element or elements belonging to any of the groups IVa, Va and/or VIa of the periodic table including Ti is at least 2/3 and not more than 97/100. In the structure of the sintered body, cubic boron nitride crystals are bonded with each other through bonding phases formed by the binder. For forming the sintered body, at least one or more Ti compounds are selected from a group of TiN.sub.z, Ti(C,N).sub.z, TiC.sub.z, (Ti,M)N.sub.z, (Ti, M) (C,N).sub.z and (Ti,M)C.sub.z, wherein M represents a transition metal element or elements belonging to any one of the groups IVa, Va and/or VIa of the periodic table excluding Ti, and z is within the range of 0.1.ltoreq.z.ltoreq.0.40. Such a sintered body has an excellent crater wear resistance, so that it can be used for making tool inserts for high-speed cutting of steel or cast iron.

    Super hard composite material for tools
    5.
    发明授权
    Super hard composite material for tools 失效
    超硬复合材料的工具

    公开(公告)号：US5882777A

    公开(公告)日：1999-03-16

    申请号：US509744

    申请日：1995-08-01

    申请人： Satoru Kukino ,  Mitsuhiro Goto ,  Tetsuo Nakai ,  Makoto Setoyama ,  Takashi Yoshioka

    发明人： Satoru Kukino ,  Mitsuhiro Goto ,  Tetsuo Nakai ,  Makoto Setoyama ,  Takashi Yoshioka

    IPC分类号： C04B41/52 ,  C04B41/89 ,  C23C14/06

    CPC分类号： C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C04B2111/0025 ,  C04B2111/00405 ,  Y10T407/27 ,  Y10T428/24975

    摘要： Super hard composite material for tools, comprising a substrate of CBN sintered body containing more than 20% by volume of cubic boron nitride (CBN), improved in strength of base material, wear-resistance, hardness at high temperatures and acid-resistance usable in cutting work of steels which are difficult to be machined. The substrate (2) has a laminated film (1) consisting of super thin films (a) and (b) each deposited alternatively on the substrate (2), the super thin film (a) being made of nitride and/or carbide of at least one element selected from a group comprising IVa group elements, Va group elements, VIa group elements, Al and B and possessing a crystal structure of cubic system and metallic bond property, the super thin film (b) being made of at least one compound possessing a crystal structure other than cubic system and covalent bond property under equilibrium condition at ambient temperature and pressure, each unit layer of the super thin films (a) and (b) having a thickness of 0.2 nm to 20 nm, and the laminated film (1) on the whole possessing a crystal structure of cubic system.

    摘要翻译： 包含用于工具的超硬复合材料，包括含有超过20体积％的立方氮化硼（CBN）的CBN烧结体的基材，基材强度提高，耐磨性，高温硬度和耐酸性 难以加工的钢的切削加工。 基板（2）具有由超薄膜（a）和（b）组成的层压膜（1），每个层叠膜（a）交替地沉积在基板（2）上，超薄膜（a）由氮化物和/或碳化物 选自包含IVa族元素，Va族元素，VIa族元素，Al和B并且具有立方晶系和金属键性质的晶体结构的组中的至少一种元素，超薄膜（b）由至少一种 在环境温度和压力下在平衡条件下具有立方体以外的晶体结构和共价键性质的化合物，超薄膜（a）和（b）的每个单位层的厚度为0.2nm至20nm，层压 膜（1）整体上具有立方体系的晶体结构。

    Sintered body insert for cutting and method of manufacturing the same
    6.
    发明授权
    Sintered body insert for cutting and method of manufacturing the same 失效
    用于切割的烧结体刀片及其制造方法

    公开(公告)号：US5712030A

    公开(公告)日：1998-01-27

    申请号：US563936

    申请日：1995-11-29

    申请人： Mitsuhiro Goto ,  Satoru Kukino ,  Kenichi Kikutani ,  Tetsuo Nakai

    发明人： Mitsuhiro Goto ,  Satoru Kukino ,  Kenichi Kikutani ,  Tetsuo Nakai

    IPC分类号： B22F7/06 ,  B23B27/14 ,  B23B27/20 ,  B23P15/30 ,  B23B27/16

    CPC分类号： B23B27/145 ,  B23B2200/201 ,  B23B2200/242 ,  B23B2200/247 ,  B23B2222/14 ,  B23B2222/28 ,  B23B2226/125 ,  B23B2226/31 ,  Y10T407/27 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/30 ,  Y10T428/31678

    摘要： A sintered body insert for cutting comprises an intermediate layer consisting of at least one of cemented carbide, a ferrous metal and a high melting point metal, and a first layer and a second layer, each consisting of hard sintered bodies containing cubic boron nitride or diamond, which are arranged on opposite sides respectively above and below with the intermediate layer therebetween. The first and second layers are bonded to the intermediate layer by sintering. The is so formed or configured that its front and rear surfaces define cutting faces. All noses and flanks involved in cutting are formed on the first layer and the second layer, while the centers of gravity of the cutting faces and of the overall insert are located at positions on or in the intermediate layer. Further, coating layers consisting of a nitride of an element belonging to the group 4a, 5a or 6a of the periodic table or other components are formed on the surfaces of the cutting faces and the flanks. With this structure, it is possible to provide a sintered body insert for cutting which is prolonged in life and excellent in economy such as the manufacturing cost.

    摘要翻译： 用于切割的烧结体刀片包括由硬质合金，黑色金属和高熔点金属中的至少一种构成的中间层，以及第一层和第二层，每个由包含立方氮化硼或金刚石的硬质烧结体组成 它们分别布置在相应的上方和下方的相对侧上，其间具有中间层。 第一层和第二层通过烧结结合到中间层。 这样形成或构造成其前表面和后表面限定切割面。 涉及切割的所有鼻和侧面形成在第一层和第二层上，而切割面和整个插入物的重心位于中间层上或中间层的位置。 此外，在切割面和侧面的表面上形成由元素周期表的组4a，5a或6a的元素的氮化物或其它成分组成的涂层。 利用这种结构，可以提供一种寿命延长且经济性好，如制造成本的切割用烧结体用刀片。

    Hard sintered compact for tools
    7.
    发明授权
    Hard sintered compact for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US5034053A

    公开(公告)日：1991-07-23

    申请号：US616599

    申请日：1990-11-21

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： B01J3/06 ,  C22C26/00

    CPC分类号： C22C26/00 ,  B01J3/062 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685

    摘要： A hard sintered compact for tools is a sintered compact obtained by super-high pressure sintering of 45-75% by vol. of cubic boron nitride powder and the remaining proportion of binder powder. The binder includes 5-25% by wt. of Al and the remaining proportion of at least one species of compounds represented by (Hf.sub.1-z M.sub.z) C, where M denotes elements of IVa, Va and VIa groups in a periodic table except for Hf, and 0.ltoreq.z.ltoreq.0.3 is satisfied. Because of this composition, improvements are made in strength, wear resistance and heat resisting property of the binder, and a hard sintered compact for tools having excellent strength and excellent wear resistance can be obtained.

    Hard sintered compact for tools
    8.
    发明授权
    Hard sintered compact for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US5395700A

    公开(公告)日：1995-03-07

    申请号：US904353

    申请日：1992-06-25

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： B22F7/06 ,  B23B27/14 ,  C23C30/00

    CPC分类号： B23B27/145 ,  B22F7/06 ,  C23C30/005 ,  B22F2005/001 ,  B23B2222/04 ,  B23B2226/125 ,  Y10T428/12028 ,  Y10T428/12049 ,  Y10T428/12056 ,  Y10T428/1209 ,  Y10T428/12139 ,  Y10T428/12146 ,  Y10T428/12167 ,  Y10T428/12174

    摘要： In this invention, a cutting tool comprises two layers of hard sintered compact of cBN. The first sintered compact layer comprises about 75-98% by volume of cBN and a first binder material. The first binder material comprises from about 1 to out 40% by weight of Al. The second sintered compact layer comprises from about 40 to about 65% by volume of cBN and a second binder material. The second binder material comprises about 2 to about 30% by weight of Al. The first sintered compact layer is bonded to the second sintered compact layer. This composite material is bonded directly or indirectly to a tool holder to form a cutting tool. The first sintered compact layer constitutes a rake face of the cutting tool.

    摘要翻译： 在本发明中，切削工具包括两层cBN的硬质烧结体。 第一烧结体层包含约75-98体积％的cBN和第一粘合剂材料。 第一粘合剂材料包含约1至40重量％的Al。 第二烧结致密层包含约40至约65体积％的cBN和第二粘合剂材料。 第二粘合剂材料包含约2至约30重量％的Al。 第一烧结体层与第二烧结体层接合。 该复合材料直接或间接地结合到工具夹以形成切割工具。 第一烧结体层构成切削工具的前刀面。

    Sintered body for high-accuracy working tools
    9.
    发明授权
    Sintered body for high-accuracy working tools 失效
    用于高精度工作工具的烧结体

    公开(公告)号：US5092920A

    公开(公告)日：1992-03-03

    申请号：US450849

    申请日：1989-12-13

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto ,  Tomohiro Fukaya

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto ,  Tomohiro Fukaya

    IPC分类号： C04B35/583 ,  B01J3/06 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/00 ,  C22C29/02 ,  C22C29/04 ,  C22C29/16

    CPC分类号： B01J3/062 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/02 ,  C22C29/16 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005

    摘要： A sintered body for high-accuracy working tools is obtained by sintering powder mixture containing at least 45 percent by volume and not more than 60 percent by volume of cubic boron nitride powder having an average particle size of not more than 2 .mu.m and having a remainder formed of binder powder under a superhigh pressure. The binder contains at least 5 percent by weight and not more than 15 percent by weight of Al and at least 2 percent by weight and not more than 20 percent by weight of W, and has a binder remainder formed of a Ti compound or compounds. The atomic ratio of Ti contained in the binder to a transition metal element or elements belonging to any of the groups IVa, Va and/or VIa of the periodic table including Ti is at least 2/3 and not more than 97/100. In the structure of the sintered body, cubic boron nitride crystals are bonded with each other through bonding phases formed by the binder. When at least one or more Ti compounds are selected from a group of TiN.sub.z, Ti(C.sub.1-x N.sub.x).sub.z, (Ti,M) (C.sub.1-x N.sub.x ).sub.z and (Ti,M)N.sub.z, where M represents transition metal element or elements belonging to any of the groups IVa, Va and/or VIa of the periodic table excluding wherein z is within the range 0.45.ltoreq.z.ltoreq.0.65 and x is within the range of 0.50.ltoreq.x

    Hard sintered compact for tools
    10.
    发明授权
    Hard sintered compact for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US4911756A

    公开(公告)日：1990-03-27

    申请号：US230618

    申请日：1988-08-09

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： C22C1/05 ,  B01J3/06 ,  B22F3/14 ,  B22F3/15 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/14 ,  C22C29/16

    CPC分类号： B01J3/062 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/16 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005

    摘要： A sintered compact is obtained by sintering a mixture containing about 50 to 75 percent by volume of cubic boron nitride and about 25 to 50 percent of a binder under cBN-stable superhigh pressure conditions. The binder contains about 20 to 50 percent by weight of Al and one or more Ti compounds selected from the group consisting of TiN.sub.z, Ti(C,N).sub.z, TiC.sub.2, (Ti,M)C.sub.z, (Ti,M) (C,N).sub.z and (Ti,M)N.sub.z, wherein M indicates a transition metal of the group IVa, Va or VIa of the periodic table excepting Ti, and wherein z is within a range of 0.5.ltoreq.z.ltoreq.0.85. The atomic ratio of the content of Ti to that of the transition metal M in the binder is within the range of about2/1.ltoreq.Ti/M.ltoreq.97/3.The binder further contains tungsten or one or more tungsten compounds, whereby the total tungsten concentration in the binder is about 4 to 40 percent by weight.

    摘要翻译： 通过在cBN稳定的超高压条件下烧结含有约50至75体积％的立方氮化硼和约25至50％的粘合剂的混合物来获得烧结体。 所述粘合剂含有约20〜50重量％的Al和选自TiNz，Ti（C，N）z，TiC 2，（Ti，M）Cz，（Ti，M）（C ，N）z和（Ti，M）Nz，其中M表示除了Ti之外的元素周期表的基团IVa，Va或VIa的过渡金属，并且其中z在0.5≤z≤0.85的范围内 。 粘合剂中Ti与过渡金属M含量的原子比在约2/1 Ti / M = 97/3的范围内。 粘合剂还含有钨或一种或多种钨化合物，由此粘合剂中的总钨浓度为约4-40重量％。