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公开(公告)号：US4040933A
公开(公告)日：1977-08-09
申请号：US735620
申请日：1976-10-26
申请人： James D. Andrews
发明人： James D. Andrews
摘要： An improved filter assembly is advantageously utilized in association with an apparatus which electrolytically removes material from a workpiece. The apparatus includes one or more nozzles each of which tapers from a relatively large inside diameter to a relatively small inside diameter to direct a flow of electrolyte toward a workpiece. The improved filter assembly is utilized to remove particles from the electrolyte before it is conducted to the nozzles. The filter assembly includes a housing which is divided into an inlet chamber and an outlet chamber by a transverse wall. A plurality of tubes extend through the wall and are effective to conduct electrolyte from the inlet chamber to the outlet chamber along a plurality of spaced apart flow paths. Each of these tubes has an inlet end portion with a cross sectional area which is less than the minimum cross sectional area of each of the nozzles. Therefore, particles which are capable of clogging the nozzles are blocked at the inlet end portions of the tubes and cannot flow through the tubes to the nozzles. Although the filter assembly is particularly well adapted for use in association with an apparatus which electrolytically removes material from a workpiece, it is contemplated that the filter assembly may be utilized with other types of apparatus to remove particles from a flow of liquid.
摘要翻译： 与从工件电解去除材料的设备相关联地，有利地利用改进的过滤器组件。 该装置包括一个或多个喷嘴，每个喷嘴从相对较大的内径逐渐变细至相当小的内径，以引导电解液流向工件。 改进的过滤器组件用于在电解质传导到喷嘴之前从电解质中除去颗粒。 过滤器组件包括壳体，其通过横向壁分成入口室和出口室。 多个管延伸穿过壁并且有效地沿着多个间隔开的流动路径将电解质从入口室传导到出口室。 这些管中的每一个具有入口端部，其截面积小于每个喷嘴的最小横截面面积。 因此，能够堵塞喷嘴的颗粒在管的入口端部处被阻挡，并且不能通过管流动到喷嘴。 尽管过滤器组件特别适用于与从工件中电解去除材料的设备相结合使用，但是可以设想，过滤器组件可与其它类型的设备一起使用以从液体流中去除颗粒。
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2.发明授权Electrode with outside flow of electrolyte for electrochemical machining and method 失效用于电化学加工的电解质外部电极和方法
公开(公告)号：US5002643A
公开(公告)日：1991-03-26
申请号：US461195
申请日：1990-01-05
申请人： James D. Andrews
发明人： James D. Andrews
摘要： An electrochemical machining apparatus is disclosed for removing material from a workpiece. The electrode has a conical tip and an electrolyte is supplied around the outer periphery of the electrode to a gap between the electrode and the workpiece. The combination of the conical tip and the electrolyte being supplied around the outer periphery of the electrode ensures that the gap between the electrode and the workpiece will be maintained at a predetermined distance preventing short-circuiting or uneven drilling of the workpiece.
摘要翻译： 公开了用于从工件中去除材料的电化学加工装置。 电极具有锥形尖端，并且电解质围绕电极的外周提供到电极和工件之间的间隙。 围绕电极外周供给的锥形尖端和电解质的组合确保电极和工件之间的间隙将保持在预定距离，防止工件的短路或不均匀钻孔。
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公开(公告)号：US4376020A
公开(公告)日：1983-03-08
申请号：US219840
申请日：1980-12-24
申请人： James D. Andrews
发明人： James D. Andrews
CPC分类号： B23H9/14
摘要： A method of and apparatus for electrolytically forming relatively narrow grooves which may extend either part way or entirely through a workpiece, in which excessive groove width is avoided by reducing electrical current density between major sides of the electrode disk and side surfaces of the groove as the groove is being formed. To reduce the density of electrical current between the side surfaces of the groove and the major sides of the electrode disk, the electrode disk is provided with openings which extend between the major sides of the disk, and are positioned radially inwardly from the periphery of the disk. The openings reduce the side surface area of the disk available for the establishment of current flow to thereby tend to minimize the extent to which the sides of the groove are electrolytically eroded during formation of the groove.
摘要翻译： 用于电解形成相对窄的槽的方法和装置，其可以部分地或完全地延伸穿过工件，其中通过减小电极盘的主侧和槽的侧表面之间的电流密度来避免过多的槽宽度 槽正在形成。 为了减小凹槽的侧表面和电极盘的主侧之间的电流密度，电极盘设置有在盘的主侧面之间延伸的开口，并且从其周边的径向向内定位 磁盘。 这些开口减小了可用于建立电流的盘的侧表面积，从而趋向于最小化在形成凹槽期间槽的侧面被电解腐蚀的程度。
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公开(公告)号：US4111677A
公开(公告)日：1978-09-05
申请号：US543754
申请日：1975-01-24
申请人： James D. Andrews
发明人： James D. Andrews
CPC分类号： C03B23/0473 , C03B23/06 , C03B23/11
摘要： Method and apparatus for providing a glass tube with a uniform nozzle portion, i.e., one which has a true centerline. The method involves suspending the tube on vertically space suspension points therealong, with the lower of the suspension points being arranged to apply a dead weight to the tube. The tube is rotated at the upper of the suspension points as it is heated above its vertical center to a temperature at which it becomes slightly plastic, but below the temperature at which the dead weight could significantly stretch the tube. This heating to the point of plasticity allows the dead weight to straighten out any axial deviations in the tube. Following the straightening, the tube is heated centrally to a higher drawing temperature sufficient to allow the dead weight to stretch the tube to a predetermined length and thereby provide a uniform necked down portion centrally of the tube. The necked down portion can then be severed at its midpoint to provide two glass electrode tubes.
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公开(公告)号：US4174268A
公开(公告)日：1979-11-13
申请号：US938948
申请日：1978-09-01
申请人： James D. Andrews
发明人： James D. Andrews
摘要： An electrode guide is used in an apparatus for electrochemically drilling an axial hole in a longitudinally extending workpiece such as a suture needle. An electrode is telescopically received in one end of the tubular guide and the workpiece in the other. Electrically non-conductive inserts are provided in the guide to position the electrode and the workpiece in axial alignment. The depth of the hole to be drilled is limited by one of the inserts which abuts the end of the needle to prevent further axial motion when the hole has reached a predetermined depth. A plurality of the electrodes are disposed in a side by side arrangement. The inlet end portions of adjacent electrodes diverge to facilitate connecting an electrolyte conducting conduit to each electrode.
摘要翻译： 在用于在诸如缝合针的纵向延伸的工件中电化学钻孔轴向孔的装置中使用电极引导件。 电极可伸缩地容纳在管状引导件的一端和另一端的工件中。 电导体插入件设置在引导件中以将电极和工件定位成轴向对准。 要钻孔的深度受到与针的端部抵接的插入件之一的限制，以防止当孔已经达到预定深度时进一步的轴向运动。 多个电极并列配置。 相邻电极的入口端部分散以便于将电解质导电导管连接到每个电极。
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公开(公告)号：US4004992A
公开(公告)日：1977-01-25
申请号：US666767
申请日：1976-03-15
申请人： Roger K. Tyler , James D. Andrews
发明人： Roger K. Tyler , James D. Andrews
摘要： Method of electrochemical drilling of the type in which an insulating hollow electrode is positioned in closely spaced relation to an anodically charged workpiece and a cathodically charged electrolyte is passed through the electrode to impinge on the workpiece, utilizing a pulsating negative voltage on the electrolyte, the voltage having a substantial negative DC component and negative pulses superimposed thereon.
摘要翻译： 其中绝缘中空电极与阳极充电的工件和阴极充电的电解质紧密地定位的类型的电化学钻孔方法通过电极冲击在工件上，利用电解质上的脉动负电压， 电压具有大的负DC分量和叠加在其上的负脉冲。
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