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    Sintered compact for use in a tool and the method for producing the same
    1.
    发明授权
    Sintered compact for use in a tool and the method for producing the same 失效
    用于工具的烧结体及其制造方法

    公开(公告)号：US4389465A

    公开(公告)日：1983-06-21

    申请号：US349663

    申请日：1982-02-17

    申请人： Tetsuo Nakai ,  Yuichiro Kono ,  Shuji Yazu ,  Akio Hara

    发明人： Tetsuo Nakai ,  Yuichiro Kono ,  Shuji Yazu ,  Akio Hara

    IPC分类号： C04B35/10 ,  B23B27/14 ,  C04B35/117 ,  C04B35/583 ,  C04B35/5831 ,  C04B35/58

    CPC分类号： C04B35/5831 ,  B23B27/148 ,  C04B35/117 ,  Y10T428/31678

    摘要： The invention relates to a sintered compact for use in an ultrahard tool having high resistance to heat and wear, outstanding thermal conductivity and thermal shock resistance property at elevated temperature, and suitable for high-speed cutting, and to a method for producing the same. A powder mixture comprising 20-80 volume % high pressure form boron nitride powder, the residual part consisting of Al.sub.2 O.sub.3 powder or a compound ceramic powder principally comprising Al.sub.2 O.sub.3 powder and also containing carbides, nitrides of IVb, Vb, VIb metals of the periodic table, mutual solid solution thereof or admixture thereof, is sintered as it stands or after pressing under a high pressure and a high temperature so that Al.sub.2 O.sub.3 of the compound ceramic constitutes a continuous phase in the structure of the sintered compact, and the half width of (116) in the X-ray diffraction of CuK.alpha. ray of Al.sub.2 O.sub.3 crystals in the structure constituting the continuous phase is within the range from 0.200 deg. to 0.600 deg., thereby enabling to obtain a sintered compact for use in a tool having the aforesaid high properties.

    摘要翻译： 本发明涉及一种用于具有高耐热耐磨性，高温下优异的导热性和耐热冲击性，适用于高速切割的超硬工具的烧结体及其制造方法。 一种粉末混合物，其包含20-80体积％的高压氮化硼粉末，剩余部分由Al2O3粉末或主要包含Al 2 O 3粉末并且还含有碳化物的化合物陶瓷粉末，周期表中IVb，Vb，VIb族金属的氮化物， 其相互固溶体或其混合物在其高压或高温下进行烧结或压制后，使得复合陶瓷的Al 2 O 3在烧结体的结构中构成连续相，并且（116 ）在构成连续相的结构中的Al 2 O 3晶体的CuKα射线的X射线衍射中在0.200度的范围内。 至0.600度，从而能够获得用于具有上述高性能的工具的烧结体。

    Process for the production of a composite tool
    2.
    发明授权
    Process for the production of a composite tool 失效
    生产复合工具的过程

    公开(公告)号：US4890782A

    公开(公告)日：1990-01-02

    申请号：US186082

    申请日：1988-04-25

    申请人： Tetsuo Nakai ,  Akio Hara ,  Shuji Yazu

    发明人： Tetsuo Nakai ,  Akio Hara ,  Shuji Yazu

    IPC分类号： B23K31/02 ,  B23K35/00 ,  E21B10/56 ,  E21B10/567

    CPC分类号： E21B10/567 ,  B23K31/025 ,  B23K35/001 ,  Y10T428/24942 ,  Y10T428/30

    摘要： A composite tool with a higher bonding strength and higher heat resistance is provided comprising an insert of a hard material such as composite diamond or BN compacts and a support of a hard metal or alloy such as steel and cemented carbides, having a larger volume than the insert, the insert and support being bonded by friction welding through an interlayer of a high strength metal or alloy such as Co and Ni with a thickness of at most 1 mm.

    摘要翻译： 提供了具有较高粘合强度和较高耐热性的复合工具，其包括硬质材料（例如复合金刚石或BN压块）的插入物和诸如钢和硬质合金的硬质金属或合金的支撑体，其具有比 插入物，插入物和支持体通过摩擦焊接通过厚度为至多1mm的高强度金属或诸如Co和Ni的合金的中间层进行结合。

    Compound sintered compact for use in a tool and the method for producing the same
    3.
    发明授权
    Compound sintered compact for use in a tool and the method for producing the same 失效
    用于工具的复合烧结体及其制造方法

    公开(公告)号：US4403015A

    公开(公告)日：1983-09-06

    申请号：US227787

    申请日：1981-01-21

    申请人： Tetsuo Nakai ,  Shuji Yazu ,  Akio Hara

    发明人： Tetsuo Nakai ,  Shuji Yazu ,  Akio Hara

    IPC分类号： B01J3/06 ,  B22F7/06 ,  B24D3/00 ,  B24D3/06 ,  B24D3/10 ,  B32B18/00 ,  C04B35/5831 ,  B22F3/14 ,  B22F7/08

    CPC分类号： C04B35/5831 ,  B01J3/062 ,  B22F7/06 ,  B24D3/007 ,  B24D3/06 ,  B24D3/10 ,  C04B35/58014 ,  C04B35/645 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  C04B2235/3843 ,  C04B2235/386 ,  C04B2235/3886 ,  C04B2235/5436 ,  Y10T428/12146

    摘要： The invention enables to obtain a compound sintered compact for use in a cutting tool having particularly high properties in respect of bonded strength, hardness, wear resistance, plastic deformability and rigidity by bonding a diamond or cubic boron nitride containing hard layer to a cemented carbide substrate with interposition of an intermediate bonding layer.A powder for forming the intermediate bonding layer comprising cubic boron nitride in an amount less than 70 volume %, the residual part principally consisting of a compound selected from among carbides, nitrides, carbonitrides or borides of 4a, 5a, 6a transition metals of the periodic table, an admixture thereof, or a mutual solid solution compound thereof, after pressing or in the state of powder, is placed on the cemented carbide substrate to a thickness less than 2 mm, or preliminarily applied to said cemented carbide substrate, further on said powder being placed a powder for forming the hard sintered compact containing diamond or cubic boron nitride in an amount in excess of 20 volume % after pressing or in the state of powder, the whole being hot pressed under an ultrahigh pressure and a high temperature to sinter the diamond or cubic boron nitride containing hard layer and the intermediate layer as well as to bond said hard layer, intermediate layer and substrate to each other, thereby enabling to obtain a compound sintered compact having the aforesaid superior properties for use in a cutting tool.

    摘要翻译： 本发明能够获得用于具有特别高的接合强度，硬度，耐磨性，塑性变形性和刚性特性的切削工具中的复合烧结体，该金刚石或立方氮化硼含有硬质层与硬质合金基体 插入中间粘合层。 用于形成中间粘合层的粉末包含小于70体积％的立方氮化硼，残余部分主要由选自周期性的4a，5a，6a过渡金属的碳化物，氮化物，碳氮化物或硼化物组成的化合物 表，其混合物或其相互固溶的化合物在压制或粉末状态之后，以小于2mm的厚度放置在硬质合金基体上，或者预先施加到所述硬质合金基底上，进一步在所述 在粉末中放置粉末，用于形成含有金刚石或立方氮化硼的硬质烧结体，其量超过压制后的20体积％或粉末状态，整体在超高压和高温下热压烧结 含有金刚石或立方氮化硼的硬质层和中间层，以及将所述硬质层，中间层和基板彼此接合， 从而能够获得具有上述用于切削工具的优异性能的复合烧结体。

    Diamond for a tool and a process for the production of the same
    5.
    发明授权
    Diamond for a tool and a process for the production of the same 失效
    钻石的工具和生产过程相同

    公开(公告)号：US4505746A

    公开(公告)日：1985-03-19

    申请号：US414821

    申请日：1982-09-03

    申请人： Tetsuo Nakai ,  Shuji Yazu

    发明人： Tetsuo Nakai ,  Shuji Yazu

    IPC分类号： B01J3/06 ,  B24D3/06 ,  B24D18/00 ,  C22C26/00 ,  B22F7/02 ,  B24D3/02

    CPC分类号： C22C26/00 ,  B01J3/062 ,  B24D3/06 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005 ,  Y10S76/12

    摘要： An improved diamond compact of the present invention comprises 20 to 85% by volume of diamond grains with a grain size of at least 3 .mu.m and the balance of a binder consisting of 20 to 95% by volume of ultra-fine diamond grains with a grain size of at most 1 .mu.m, at least one member with a grain size of at most 1 .mu.m, selected from the group consisting of carbides, carbonitrides, nitrides, borides of Group 4a, 5a and 6a elements of Periodic Table, solid solutions thereof and mixed crystals thereof and at least one member selected from the group consisting of iron group metals.

    摘要翻译： 本发明的改进的金刚石复合体包含20至85体积％的晶粒尺寸至少为3微米的金刚石颗粒，余量为20至95体积％的超细金刚石颗粒，其中具有 晶粒尺寸至多为1μm，至少一种粒径至多为1μm的成员选自碳化物，碳氮化物，氮化物，元素周期表4a，5a和6a元素的硼化物，固体 溶液及其混晶，以及选自铁族金属中的至少一种。

    High strength sintered impact having excellent resistance to cratering
    9.
    发明授权
    High strength sintered impact having excellent resistance to cratering 有权
    高强度烧结冲击具有优异的耐火蚀性

    公开(公告)号：US06635593B1

    公开(公告)日：2003-10-21

    申请号：US09913265

    申请日：2001-08-10

    申请人： Satoru Kukino ,  Tomohiro Fukaya ,  Junichi Shiraishi ,  Tetsuo Nakai

    发明人： Satoru Kukino ,  Tomohiro Fukaya ,  Junichi Shiraishi ,  Tetsuo Nakai

    IPC分类号： C04B355831

    CPC分类号： C04B35/5831 ,  Y10T407/27

    摘要： A sintered material containing high-pressure phase-type boron nitride and a binder is provided. The high-pressure phase-type boron nitride is contained in an amount of from 50% to 78% by volume, and the balance is a binder phase. The binder phase comprises at least one selected from the group consisting of nitride, carbide, carbonitride, and boride of Ti, nitride, boride and oxide of Al, carbide and boride of W, nitride, carbide, carbonitride and boride of Co, and carbide and boride of Ni, or a mutual solid solution thereof. The binder phase forms a binder phase which is continuous in a sintered material texture. The weight of metal components Al, W, Co and Ni which are present as compounds in the sintered material is from 3% to 20% based on the sintered material. The sintered material is excellent in crater resistance and capable of realizing a long tool life, even under the condition that the temperature of the cutting edge becomes high and the impact is large, as in high-speed interrupted cutting of hardened steel where the cutting speed V becomes at least 150 m/min.

    摘要翻译： 提供含有高压相型氮化硼和粘合剂的烧结材料。 高压相型氮化硼的含量为50〜78体积％，余量为粘结相。 粘结相包括选自Ti，氮化物，硼化物和Al的氧化物的氮化物，碳化物，碳氮化物和硼化物中的至少一种，W，氮化物，碳化物，碳氮化物和Co的硼化物的碳化物和硼化物，以及碳化物 和Ni的硼化物或其相互固溶体。 粘结相形成在烧结材料结构中连续的粘结相。 烧结材料中作为化合物存在的金属成分Al，W，Co，Ni的重量相对于烧结体为3〜20％。 该烧结材料即使在切削刃的温度高，冲击大的条件下也能够实现长的刀具寿命，因为在切削速度高的淬火钢的高速切断切削中 V变为至少150m / min。

    Method of cutting hardened steel with high accuracy
    10.
    发明授权
    Method of cutting hardened steel with high accuracy 有权
    高精度切削淬火钢的方法

    公开(公告)号：US6065377A

    公开(公告)日：2000-05-23

    申请号：US175968

    申请日：1998-10-21

    申请人： Takashi Harada ,  Tetsuo Nakai ,  Tomohiro Fukaya ,  Junichi Shiraishi

    发明人： Takashi Harada ,  Tetsuo Nakai ,  Tomohiro Fukaya ,  Junichi Shiraishi

    IPC分类号： B23B1/00 ,  B23B3/00

    CPC分类号： B23B1/00 ,  Y10T407/26 ,  Y10T407/27 ,  Y10T82/10

    摘要： A method of cutting hardened steel using a cBN sintered tool which can improve the surface roughness while maintaining high dimensional accuracy. The upper limit of the tool feed rate is set at such a value that a theoretical surface roughness calculated from the feed rate is between 2/3 and 1/1000 of the target surface roughness. The amount of change of the feed rate between the upper and lower limits of the tool feed rate is set to be between 0.002 and 0.05 mm/rev, and the amount of every feed rate change is set not to be equal to the original feed rate multiplied by an integer. The feed rate is changed forcibly for every number of workpieces for which the total cutting length is between 10 and 1000 meters.

    摘要翻译： 使用可以提高表面粗糙度同时保持高尺寸精度的cBN烧结工具来切割硬化钢的方法。 刀具进给速度的上限被设定为从进给速度计算的理论表面粗糙度在目标表面粗糙度的2/3和1/1000之间的值。 刀具进给速度的上限和下限之间的进给速率的变化量设定在0.002和0.05mm / rev之间，并且每个进给速率变化的量被设定为不等于原始进给速率 乘以整数。 对于总切割长度在10到1000米之间的每个工件数量，进给速率被强制变化。