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公开(公告)号：US20170304921A1
公开(公告)日：2017-10-26
申请号：US15517157
申请日：2015-10-06
申请人： SARCLAD LIMITED
CPC分类号： B23H9/04 , B23H1/10 , B23H7/36 , B23H11/00 , B23H11/003
摘要： An EDT apparatus 1 is disclosed, comprising a dielectric fluid return system for use with an EDT machine of the type in which the workpiece is not submersed in dielectric fluid. The return system comprises a first collector 19 for catching spills from a dielectric bath 9 associated with a set of electrodes 10 which apply electrical pulses to the workpiece through the dielectric fluid in the bath. Also, a separate, second collector 21 is positioned substantially beneath the workpiece and arranged both to receive fluid from the first collector 19 and to catch fluid that drips from the workpiece itself, the second collector being connected to a pump 13 which returns the fluid from the second collector to the dielectric bath.
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公开(公告)号：US5089681A
公开(公告)日：1992-02-18
申请号：US567076
申请日：1990-08-14
摘要： An electro-discharge machining apparatus includes an electrode carrier on which there are mounted a plurality of separate electrodes. A circuit for each electrode applies a high voltage discharge initiating pulse followed by an extended lower voltage discharge sustaining pulse to the associated electrode. A gap voltage sampling circuit samples the voltage between the electrode and the workpiece and a "low wins" circuit passes a signal representing the lowest gap voltage as a feedback signal for a servo-actuator which moves the electrode holder towards and away from the workpiece.
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3.发明授权Electrical discharge apparatus for producing a textured finish on a conductive surface 失效用于在导电表面上生产纹理光洁度的放电装置
公开(公告)号：US5034589A
公开(公告)日：1991-07-23
申请号：US200693
申请日：1988-05-31
摘要： Electrical discharge apparatus for producing on the surface of an electrically conductive workpiece a textured or matt finish comprises a plurality of electrodes each connectable to an electrical power source and each carried by a head which in use of the apparatus can be moved linearly of the workpiece with the electrodes each spaced at a predetermined distance from the workpiece surface. A characteristics of the voltage conditions present within the gap existing between the electrodes and the workpiece surface is monitored and, the head is moved towards and away from the workpiece surface to maintain the monitored characteristic within predetermined limits. Dielectric fluid is retained within the gap existing between the electrodes and the workpiece surface, and a series of discrete electrical discharges is promoted between each electrode and the adjacent workpiece surface to cause particles to be removed from the workpiece surface and produce a textured or matt finish thereto.
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公开(公告)号：US3619881A
公开(公告)日：1971-11-16
申请号：US3619881D
申请日：1969-01-17
发明人： BILLS MAX E , HANSEN HENRY J JR
CPC分类号： B21B27/005 , B21B1/227 , B21B2267/10 , B23H9/04 , Y10T428/12389 , Y10T428/12993 , Y10T428/24355
摘要： A WORK ROLL FOR COLD ROLLING STEEL SHEETS OR STRIP HAS A PLURALITY OF SHALLOW GENERALLY FRUSTOSPHERICAL DEPRESSIONS IN ITS OUTER SURFACE. THE VAST MAJORITY OF THE DEPRESSIONS ARE OF SUBSTANTIALLY UNIFORM SHAPE AND DEPTH, BUT MAY BE RANDOMLY SPACED OVER THE ROLL SURFACE. WHEN THE SHEET IS ROLLED BETWEEN TWO ROLLS, AT LEAST ONE OF WHICH HAS THE DESCRIBED SURFACE, LOW GENERALLY FRUSTOSPHERICAL PROJEC-
TIONS OF SUBSTANTIALLY UNIFORM SHAPE AND HEIGHT ARE OBTAINED ON THAT SIDE OF THE STRIP IN CONTRACT WITH THE SURFACED ROLL.-
公开(公告)号：US3251762A
公开(公告)日：1966-05-17
申请号：US13361361
申请日：1961-08-24
发明人： GORDON CHARLES R
IPC分类号： B23H9/04
CPC分类号： B23H9/04
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公开(公告)号：US20050227594A1
公开(公告)日：2005-10-13
申请号：US11082214
申请日：2005-03-15
申请人： Peter Vinke , Stefan Neuser , Roland Meier
发明人： Peter Vinke , Stefan Neuser , Roland Meier
摘要： A belt grinding is integrated with an electroerosion machine for contouring the working surface of a mill roll and providing a texture thereon. The belt grinder can superfinish the roll and remove peaks in the surface without significantly affecting the mean surface roughness produced by the electroerosion.
摘要翻译： 皮带研磨与电腐蚀机一体化，用于对轧辊的工作表面进行成型，并在其上提供纹理。 带式研磨机可以对辊进行超精加工并去除表面上的峰，而不会显着影响由电腐蚀产生的平均表面粗糙度。
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公开(公告)号：US06084194A
公开(公告)日：2000-07-04
申请号：US260748
申请日：1999-03-01
申请人： James W. Baker
发明人： James W. Baker
CPC分类号： B23H9/04
摘要： A method and apparatus for electric-discharge texturing (EDT) ends of a roll rotatably supported about a roll axis uses electrodes mounted on a head. The head is movable in a direction parallel to the roll axis. The electrodes are movable in a direction transverse to the roll axis to maintain a desired spacing with respect to the surface of the roll. Each of the electrodes is positioned at a sparking position along the direction transverse to the roll axis to effect sparking with the surface of the roll. The head is moved in a direction from the center portion of the roll towards the first end of the roll along the direction parallel to the roll axis such that each of the electrodes traverse across the surface of the first end of the roll. Each of the electrodes is then positioned at a retracted position along the direction transverse to the roll axis as each of the electrodes passes off the first end of the roll. The head is then moved back in a direction from the first end towards the second end after all of the electrodes have traversed across the surface of the first end of the roll such that each of the electrodes traverse across the surfaces of the first end and the center portion of the roll. The process is then repeated at the second end. Because each of the electrodes traverse across the surface of the roll, the roll profile deformation across the roll is consistent.
摘要翻译： 用于绕辊轴可旋转地支撑的辊的放电纹理（EDT）端部的方法和装置使用安装在头部上的电极。 头部可以在平行于辊轴的方向上移动。 电极可以在横向于辊轴线的方向上移动以相对于辊的表面保持期望的间隔。 每个电极沿着横向于辊轴线的方向定位在火花位置处以与辊的表面发生火花。 头部沿着从辊的中心部分朝着平行于辊轴线的方向朝向辊的第一端的方向移动，使得每个电极穿过辊的第一端的表面。 然后每个电极沿着横向于辊轴线的方向定位在缩回位置，因为每个电极都从辊的第一端排出。 然后，在所有的电极已经穿过辊的第一端的表面之后，头部从第一端向第二端的方向移回，使得每个电极穿过第一端的表面，并且 卷的中心部分。 然后在第二端重复该过程。 因为每个电极横过辊的表面，所以横跨辊的辊轮廓变形是一致的。
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公开(公告)号：US4950860A
公开(公告)日：1990-08-21
申请号：US167268
申请日：1988-03-11
摘要： An electro-discharge machining apparatus includes an electrode carrier on which there are mounted a plurality of separate electrodes. A circuit for each electrode applies a high voltage discharge initiating pulse followed by an extended lower voltage discharge sustaining pulse to the associated electrode. A gap voltage sampling circuit samples the voltage between the electrode and the workpiece and a "low wins" circuit passes a signal representing the lowest gap voltage as a feedback signal for a servo-actuator which moves the electrode holder towards and away from the workpiece.
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公开(公告)号：US4870243A
公开(公告)日：1989-09-26
申请号：US231082
申请日：1988-08-11
申请人： Geoffrey Wilson , Gareth A. Evans
发明人： Geoffrey Wilson , Gareth A. Evans
摘要： An electrical discharge apparatus comprises a plurality of electrodes mounted on an electrode carrier and spaced from a workpiece surface to define a gap across which a train of electrical pulses are transmitted. Dielectric fluid is present within the gap and controlled additions of solid particles are made to the dielectric fluid, with the particles being of a material of different electrical conductivity and/or permittivity to that or those of the dielectric fluid. The concentration by volume of the particles within the dielectric fluid lies within the range 0.05% to 7.0% and the size of the majority of the added particles is in excess of 7 microns. The particles are of a material having a relatively high electrical conductivity, e.g., graphite or metallic particles. Alternatively, the particles are formed from a material having good electrical insulating properties, e.g., glass, ceramic or certain metallic oxides.
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10.发明授权EDM Of a roll using segmented electrode short-circuited in the rough machine step 失效EDM在粗机步骤中使用分段电极短路
公开(公告)号：US4471199A
公开(公告)日：1984-09-11
申请号：US424314
申请日：1982-09-27
摘要： There is disclosed a method for electrical discharge machining of a workpiece in the form of a roll by application of an electrical voltage across said workpiece and an electrode or electrodes mounted opposite to each other with a predetermined gap therebetween, and more particularly such method wherein each such electrode is formed by plural electrode segments separated from one another by insulators, and the electrical discharge operation is performed with said electrode segments in each electrode short-circuited to one another in the rough machining step and with said electrode segments insulated from one another in the finish machining step for reducing the working time.
摘要翻译： 公开了一种通过在所述工件上施加电压并且以彼此之间具有预定间隙彼此相对安装的电极或电极来以辊的形式对工件进行放电加工的方法，更具体地，其中每个 这种电极由通过绝缘体彼此分离的多个电极段形成，并且在粗加工步骤中，每个电极中的每个电极中的电极段彼此短路并且彼此绝缘的电极段执行放电操作 精加工步骤，减少工作时间。
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