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    High-pressure phase boron nitride base sinter
    1.
    发明授权
    High-pressure phase boron nitride base sinter 失效
    高压相氮化硼基烧结矿

    公开(公告)号：US6008153A

    公开(公告)日：1999-12-28

    申请号：US101742

    申请日：1998-07-16

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

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

    IPC分类号： C04B35/5831 ,  C04B35/5835

    CPC分类号： C04B35/5831

    摘要： A high-pressure phase boron nitride-based high-hardness high-strength sintered body for cutting tools represented by a milling tool and an end mill etc., which is improved in wear resistance and chipping resistance, is obtained. The high-pressure phase boron nitride-based sintered body according to the present invention comprises a plurality of grains (1) of high-pressure phase boron nitride and a binder phase (2, 3), and the content of the aforementioned grains (1) is at least 20.0 volume % and not more than 99.7 volume %. The aforementioned binder phase (2, 3) includes a first binder phase (2) enclosing the aforementioned grains (1) and a second binder phase (3) other than that. The first binder phase (2) consists of the form of at least either a nitride of at least one of Ti, TiAl, Zr and Hf or a solid solution thereof. The aforementioned second binder phase (3) includes a grain growth suppressive binder phase (4) between a plurality of the aforementioned grains (1) enclosed with the aforementioned first binder phase (2).

    摘要翻译： PCT No.PCT / JP97 / 04410 Sec。 371日期：1998年7月16日 102（e）日期1998年7月16日PCT 1997年12月3日PCT PCT。 出版物WO98 / 24736 日期1998年6月11日获得了耐磨性和耐崩裂性提高的用于切削工具的高压相氮化硼系高硬度高强度烧结体。 根据本发明的高压相氮化硼基烧结体包括多个高压相氮化硼颗粒（1）和粘结相（2,3），并且上述颗粒（1）的含量 ）为20.0体积％以上且99.7体积％以下。 上述粘合剂相（2,3）包括包围上述颗粒（1）的第一粘结相（2）和除此之外的第二粘结相（3）。 第一粘合剂相（2）由至少一种Ti，TiAl，Zr和Hf的氮化物或其固溶体的形式组成。 上述第二粘结相（3）包括在由上述第一粘结相（2）包围的多个上述颗粒（1）之间的晶粒生长抑制粘合剂相（4）。

    Hard and tough sintered body
    2.
    发明授权
    Hard and tough sintered body 失效
    坚硬坚韧的烧结体

    公开(公告)号：US6001758A

    公开(公告)日：1999-12-14

    申请号：US960773

    申请日：1997-10-30

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

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

    IPC分类号： C04B35/5831 ,  C04B35/5835

    CPC分类号： C04B35/5831

    摘要： A sintered body consists of high-pressure phase boron nitride, a residual binder phase and an unavoidable impurity, and contains high-pressure phase boron nitride powder which is previously coated with a binder before sintering. The coating binder consists of an element belonging to the group 4a, 5a or 6a of the periodic table or the like, and has an average thickness of 5 to 300 nm. Binder powder other than the coating binder consists of an element belonging to the group 4a, 5a or 6a of the periodic table or the like, and a contact ratio of high-pressure phase boron nitride particles in surface-to-surface contact with each other is at least 20% and less than 50%. The resulting high-pressure phase boron nitride-based hard and tough sintered body for a cutting tool is improved in wear resistance and chipping resistance.

    摘要翻译： 烧结体由高压相氮化硼，残余粘结相和不可避免的杂质组成，并且包含预先在烧结之前用粘合剂涂覆的高压相氮化硼粉末。 涂层粘合剂由属于周期表等的4a，5a或6a族元素组成，平均厚度为5〜300nm。 涂层粘合剂以外的粘合剂粉末由属于周期表等的4a，5a或6a族的元素组成，高压相氮化硼颗粒在表面与表面之间接触的接触比 至少为20％且小于50％。 所得到的用于切削工具的高压相氮化硼基硬坚韧烧结体的耐磨性和耐崩裂性提高。

    High strength sintered impact having excellent resistance to cratering
    4.
    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。

    Cubic boron nitride sintered body
    7.
    发明授权
    Cubic boron nitride sintered body 有权
    立方氮化硼烧结体

    公开(公告)号：US06316094B1

    公开(公告)日：2001-11-13

    申请号：US09357970

    申请日：1999-07-21

    申请人： Tomohiro Fukaya ,  Satoru Kukino ,  Junichi Shiraishi

    发明人： Tomohiro Fukaya ,  Satoru Kukino ,  Junichi Shiraishi

    IPC分类号： B24D300

    CPC分类号： C04B35/5831 ,  C22C26/00 ,  C22C2026/005 ,  Y10T428/25 ,  Y10T428/26 ,  Y10T428/2991 ,  Y10T428/2993

    摘要： A cBN sintered body superior in chipping resistance. The cBN sintered body is a sintered body in which cBN particles are bonded through a bonding phase. The bonding phase has a two-dimensionally continuous structure. The bonding phase comprises at least one kind selected from the group consisting of (a) carbide, nitride, carbonitride, or boride of a 4a-, 5a-, or 6a-group transition metal in the periodic table; (b) nitride, boride, or oxide of Al; (c) at least one kind of carbide, nitride, carbonitride, and boride of Fe, Co, or Ni; and (d) a mutual solid solution of those. The percentage of cBN content is 45 to 70% in volume. The bonding phase has the thickness of which the average value is 1.5 &mgr;m or less and the standard deviation is 0.9 &mgr;m or less with the cBN particles having an average particle size of 2 to 6 &mgr;m inclusive. The bonding phase has the thickness of which the average value is 1.0 &mgr;m or less and the standard deviation is 0.7 &mgr;m or less with the cBN particles having an average particle size of not less than 0.01 &mgr;m and less than 2.0 &mgr;m.

    摘要翻译： 耐破碎性优异的cBN烧结体。 cBN烧结体是通过结合相结合cBN粒子的烧结体。 结合相具有二维连续结构。 键合相包含选自元素周期表中的（a）碳化物，氮化物，碳氮化物或硼化物中的至少一种，其中该元素是4a-，5a-或6a-基过渡金属; （b）Al的氮化物，硼化物或氧化物; （c）Fe，Co或Ni中的至少一种碳化物，氮化物，碳氮化物和硼化物; 和（d）这些的相互坚实的解决方案。 cBN含量的百分比为45〜70％。 结合相的平均值为1.5μm以下，标准偏差为0.9μm以下，cBN粒子的平均粒径为2〜6μm。 结合相的平均值为1.0μm以下，标准偏差为0.7μm以下，cBN粒子的平均粒径为0.01μm以上且小于2.0μm。

    Method of cutting hardened steel with high accuracy
    9.
    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。

    Method for processing difficult-to-cut cast iron
    10.
    发明授权
    Method for processing difficult-to-cut cast iron 有权
    加工难切割铸铁的方法

    公开(公告)号：US09016987B2

    公开(公告)日：2015-04-28

    申请号：US13504422

    申请日：2010-10-28

    申请人： Katsumi Okamura ,  Satoru Kukino ,  Tomohiro Fukaya

    发明人： Katsumi Okamura ,  Satoru Kukino ,  Tomohiro Fukaya

    IPC分类号： B23C3/02

    CPC分类号： B23C3/02 ,  B23C2222/14 ,  B23C2226/125 ,  Y10T407/26 ,  Y10T409/303808

    摘要： In a pilot hole of a workpiece made of a difficult-to-cut cast iron, a cutting tool having a leading end to which a cutting insert is attached is inserted to cut the surface of the wall of the pilot hole. At this time, the cutting tool rotates about an axis (α) and also revolves about another axis (β), so that contouring is performed on the workpiece by the tool. The cutting insert is formed of a sintered body having a CBN content of not less than 85% by volume, and the cutting insert has a thermal conductivity of not less than 100 W/(mK).

    摘要翻译： 在由难切割的铸铁制成的工件的导向孔中插入具有附接有切削刀片的前端的切削工具，以切割引导孔的壁的表面。 此时，切割工具围绕轴线（α）旋转并且还围绕另一轴线（＆bgr）旋转，使得通过工具在工件上进行轮廓加工。 切削刀片由CBN含量不小于85体积％的烧结体形成，切削刀片的热导率不低于100W /（mK）。