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111 条记录 (耗时 0.02 秒)

    Precision replenishable grinding tool and manufacturing process
    71.
    发明授权
    Precision replenishable grinding tool and manufacturing process 失效
    精密补充研磨工具及制造工艺

    公开(公告)号：US5762660A

    公开(公告)日：1998-06-09

    申请号：US627166

    申请日：1996-04-03

    申请人： Daniel M. Makowiecki ,  John A. Kerns ,  Kenneth L. Blaedel ,  Nicholas J. Colella ,  Pete J. Davis ,  Robert S. Juntz

    发明人： Daniel M. Makowiecki ,  John A. Kerns ,  Kenneth L. Blaedel ,  Nicholas J. Colella ,  Pete J. Davis ,  Robert S. Juntz

    IPC分类号： B24B3/00 ,  B24D18/00 ,  B24D99/00 ,  B24D11/00

    CPC分类号： B24D99/00 ,  B24B3/00 ,  B24D18/00

    摘要： A reusable grinding tool consisting of a replaceable single layer of abrasive particles intimately bonded to a precisely configured tool substrate, and a process for manufacturing the grinding tool. The tool substrate may be ceramic or metal and the abrasive particles are preferably diamond, but may be cubic boron nitride. The manufacturing process involves: coating a configured tool substrate with layers of metals, such as titanium, copper and titanium, by physical vapor deposition (PVD); applying the abrasive particles to the coated surface by a slurry technique; and brazing the abrasive particles to the tool substrate by alloying the metal layers. The precision control of the composition and thickness of the metal layers enables the bonding of a single layer or several layers of micron size abrasive particles to the tool surface. By the incorporation of an easily dissolved metal layer in the composition such allows the removal and replacement of the abrasive particles, thereby providing a process for replenishing a precisely machined grinding tool with fine abrasive particles, thus greatly reducing costs as compared to replacing expensive grinding tools.

    摘要翻译： 可重复使用的研磨工具由紧密结合到精确配置的工具基底上的可更换单层研磨颗粒组成，以及用于制造研磨工具的方法。 工具衬底可以是陶瓷或金属，并且磨料颗粒优选是金刚石，但是可以是立方氮化硼。 制造过程包括：通过物理气相沉积（PVD）将配置有金属层（例如钛，铜和钛）的工具衬底涂覆; 通过浆料技术将磨料颗粒施加到涂覆表面; 并通过使金属层合金化将磨料颗粒钎焊到工具基底上。 金属层的组成和厚度的精确控制使得能够将单层或几层微米级磨料颗粒结合到工具表面。 通过在组合物中引入容易溶解的金属层可以使磨料颗粒的移除和更换，从而提供了用精细磨料颗粒补充精密加工的磨削工具的方法，从而与替代昂贵的磨具相比大大降低了成本 。

    Clear tough alloys
    73.
    发明授权
    Clear tough alloys 失效
    清洁的合金

    公开(公告)号：US5237007A

    公开(公告)日：1993-08-17

    申请号：US848732

    申请日：1992-03-09

    申请人： Michael Colella

    发明人： Michael Colella

    IPC分类号： C08L25/14 ,  C08L33/06 ,  C08L53/02

    CPC分类号： C08L25/14 ,  C08L33/062 ,  C08L2205/02 ,  C08L53/02

    摘要： A tough transparent polymer alloy comprises from 98 to 85 weight % of a styrene acrylic polymer and from 2 to 15 weight % of a blend comprising from 70 to 90 weight % of a high styrene styrene-butadiene polymer and from 30 to 10 weight % of a high butadiene styrene-butadiene polymer. The resulting alloy has good clarity and impact properties.