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    Unidirectional abrasive flow machining
    2.
    发明授权
    Unidirectional abrasive flow machining 失效
    单向磨料流加工

    公开(公告)号：US5367833A

    公开(公告)日：1994-11-29

    申请号：US139744

    申请日：1993-10-22

    申请人： Lawrence J. Rhoades ,  Thomas A. Kohut ,  Nicholas P. Nokovich ,  Danny W. Yanda

    发明人： Lawrence J. Rhoades ,  Thomas A. Kohut ,  Nicholas P. Nokovich ,  Danny W. Yanda

    IPC分类号： B24B19/00 ,  B24B31/116

    CPC分类号： B24B31/116

    摘要： An abrasive flow machining and polishing apparatus is provided having a hydraulically actuated reciprocating piston (42) and a extrusion medium chamber (10) adapted to receive and extrude a visco-elastic dispersion of an abrasive unidirectionally across the internal surfaces of a workpiece (40) having internal passages (41) formed therein to perform abrasive work on said surfaces. A fixture (24) directs flow of the viscoelastic abrasive dispersion from said hydraulic extrusion medium chamber (10) into the inlet of internal passages (41) in a workpiece (40), while a collector (30) is set to gravitrimetrically collect flow of the viscoelastic abrasive dispersion as it extrudes from an outlet of the internal passages and drops into the collector. The extrusion medium chamber (10) is provided with an access port (16) to periodically receive gravimetric return flow of the viscoelastic abrasive dispersion from the collector (30) into extrusion medium chamber (10). The hydraulically actuated piston (42) intermittently withdraws from its extruding position within said extrusion medium chamber to open the extrusion medium chamber access port (16 ) and to permit gravimetric return flow of said viscoelastic abrasive dispersion through the opened port (16) and into said extrusion medium chamber(10). When the extrusion medium chamber is charged with the working medium, the operation is resumed in a continuing cyclic fashion until working is completed on the workpiece, whereupon it is replaced with another, and a new cycle is begun.

    摘要翻译： 提供一种磨料流加工和抛光装置，其具有液压致动的往复活塞（42）和挤出介质室（10），该挤出介质室适于将磨料的粘弹性分散体单向地穿过工件（40）的内表面， 其中形成有内部通道（41）以在所述表面上进行研磨作业。 夹具（24）将粘弹性磨料分散体从所述液压挤出介质室（10）引导到工件（40）内的内部通道（41）的入口中，同时收集器（30）被设置为重力地收集 粘弹性磨料分散体从内部通道的出口挤出并滴入收集器。 挤出介质室（10）设置有进入口（16），以周期性地将粘弹性磨料分散体的重量返回流从收集器（30）接收到挤出介质室（10）中。 液压致动活塞（42）在所述挤出介质室内间歇地从其挤出位置退出以打开挤出介质室进入口（16），并允许所述粘弹性磨料分散体通过打开的端口（16）进行重量回流并进入所述 挤出介质室（10）。 当挤压介质室被充满工作介质时，以持续的循环方式重新开始操作，直到在工件上完成工作，然后再用另一个替换，并开始新的循环。

    Reversible unidirectional abrasive flow machining
    3.
    发明授权
    Reversible unidirectional abrasive flow machining 失效
    可逆单向磨料流加工

    公开(公告)号：US5070652A

    公开(公告)日：1991-12-10

    申请号：US607278

    申请日：1990-10-31

    申请人： Lawrence J. Rhoades ,  Thomas A. Kohut ,  Nicholas P. Nokovich

    发明人： Lawrence J. Rhoades ,  Thomas A. Kohut ,  Nicholas P. Nokovich

    IPC分类号： B24B31/116

    CPC分类号： B24B31/116

    摘要： unidirectional abrasive flow machining is achieved by a pair of extrusion chambers, whereby a first workpiece is fixtured to a first of said chambers and an abrasive medium is extruded from the first chamber through the first workpiece, and upon exiting the first workpiece, is allowed to fall into and be collected within the second chamber. Thereafter, the first workpiece is removed and a second workpiece is fixtured to the second chamber so that the abrasive medium collected therein is extruded through the second workpiece and upon exiting the second workpiece, is allowed to fall into and be collected within the first chamber.

    摘要翻译： 通过一对挤出室实现单向磨料流加工，由此第一工件固定到所述第一个室中，并且研磨介质从第一室通过第一工件挤出，并且在离开第一工件时允许 落入并收集在第二个室内。 此后，第一工件被移除并且第二工件固定到第二室，使得在其中收集的研磨介质通过第二工件挤出，并且在离开第二工件时被允许落入并收集在第一室内。