公开(公告)号：US06746310B2

公开(公告)日：2004-06-08

申请号：US10213631

申请日：2002-08-06

申请人： Marc Tricard ,  William Kordonski

发明人： Marc Tricard ,  William Kordonski

IPC分类号： B24B4900

CPC分类号： B24B49/12 ,  B24B1/005 ,  B24B7/228 ,  B24B31/112 ,  G01B11/06 ,  G01B11/306

摘要： An improved method for producing a thin layer having highly uniform thickness, which layer may be pre-coated on an undulating surface of a substrate element. A working layer of the material is formed having a thickness greater than the final thickness desired. An areal (XY) determination of working layer thickness is made by ellipsometry, laser interferometry, or x-ray diffraction, or other known means. A map of thicknesses to be removed from the free surface of the working layer is entered into the control system of a magnetorheological finishing apparatus. The working layer is mounted on a workpiece holder of the apparatus and correctly indexed to the machine. The machine then removes material by magnetorheological finishing as instructed by the control system to leave a residual layer having a very high degree of thickness uniformity at a nominal average thickness and a very high surface integrity.

摘要翻译： 一种用于生产具有高度均匀厚度的薄层的改进方法，该层可以预涂在基底元件的起伏表面上。 该材料的工作层形成的厚度大于所需的最终厚度。 通过椭偏仪，激光干涉仪或X射线衍射法或其他已知方法进行工作层厚度的面（XY）测定。 要从工作层的自由表面移除的厚度的图形被输入到磁流变整理装置的控制系统中。 工作层安装在设备的工件支架上，并正确地向机器索引。 然后机器按照控制系统的指示通过磁流变整理来去除材料，以留下具有非常高的厚度均匀度的残余层，其标称平均厚度和非常高的表面完整性。

公开(公告)号：US5795212A

公开(公告)日：1998-08-18

申请号：US543426

申请日：1995-10-16

申请人： Stephen David Jacobs ,  William Kordonski ,  Igor Victorovich Prokhorov ,  Donald Golini ,  Gennadii Rafailovich Gorodkin ,  Tvasta David Strafford

发明人： Stephen David Jacobs ,  William Kordonski ,  Igor Victorovich Prokhorov ,  Donald Golini ,  Gennadii Rafailovich Gorodkin ,  Tvasta David Strafford

IPC分类号： B24B1/00 ,  B24B9/14 ,  B24B31/112 ,  H01F1/44

CPC分类号： B24B31/112 ,  B24B1/005 ,  B24B9/14 ,  H01F1/447

摘要： A method and apparatus for finishing a workpiece surface using MR fluid is provided wherein the workpiece is positioned near a carrier surface such that a converging gap is defined between a portion of the workpiece surface and the carrier surface; a magnetic field is applied substantially at said gap; a flow of stiffened MR fluid is introduced into said converging gap such that a work zone is created in the MR fluid to form a sub-aperture transient finishing tool for engaging and causing material removal at the portion of the workpiece surface; and the workpiece or the work zone is moved relative to the other to expose different portions of the workpiece surface to the work zone for predetermined time periods to selectively finish said portions of said workpiece surface to predetermined degrees.

公开(公告)号：US07156724B2

公开(公告)日：2007-01-02

申请号：US11012645

申请日：2004-12-15

申请人： William Kordonski ,  Andy Price ,  Jerry Carapella ,  Arpad Sekeres

发明人： William Kordonski ,  Andy Price ,  Jerry Carapella ,  Arpad Sekeres

IPC分类号： B24B1/00

CPC分类号： F16J15/43

摘要： An arcuate, preferably cylindrical, magnetic shunt bar supports a plurality of pin magnets having alternate north and south orientations, defining a ring-shaped array of magnets of alternating orientation. The magnet free ends opposite the shunt bar are positioned to conform closely to the shape of a surface to be sealed, forming a narrow gap therebetween containing a multi-polar magnetic field extending beyond the free ends in a direction substantially orthogonal to the surface. The axes of the magnets may be disposed at any desired angular orientation to the surface. Magnetorheological fluid (MRF) in the gap is magnetically stiffened and held as a dynamic seal. The arrangement is useful as a shaft seal, wherein the seal surface passes axially through the array, and also as a wiper for MRF from a carrier surface wherein the surface passes by the array.

摘要翻译： 弧形，优选圆柱形的磁分路杆支撑具有交替的北和南取向的多个销磁体，限定交替定向的磁体的环形阵列。 与分流棒相对的磁体自由端被定位成紧密地与待密封的表面的形状紧密地形成，在它们之间形成狭窄的间隙，其间包含大致垂直于表面的方向延伸超过自由端的多极磁场。 磁体的轴可以以任何期望的角度方向设置到表面。 间隙中的磁流变流体（MRF）被磁力加强并保持为动态密封。 该装置作为轴密封是有用的，其中密封表面轴向地穿过阵列，并且还可以作为用于表面经过阵列的载体表面的MRF的擦拭器。

公开(公告)号：US06267651B1

公开(公告)日：2001-07-31

申请号：US09480306

申请日：2000-01-10

申请人： William Kordonski ,  Gennadi Gorodkin ,  Stephen Hogan ,  Arpad Sekeres

发明人： William Kordonski ,  Gennadi Gorodkin ,  Stephen Hogan ,  Arpad Sekeres

IPC分类号： B24B4900

CPC分类号： B24B1/005 ,  B24B31/112 ,  B24B31/12 ,  H01F7/0252

摘要： A magnetic wiper for removing magnetorheological fluid from a carrier surface includes a horseshoe magnet having north and south polepieces elongated in a first direction orthogonal to a second direction of magnetic flux in the magnet. The polepieces are generally parallel at their free ends in the first direction and are preferably arcuate such that the inner polepiece forms a trough for receiving magnetorheological fluid removed from the carrier surface and conveying it to an exit tube. The free ends are shaped to conform closely to the shape of the carrier surface, forming a narrow gap therebetween containing a magnetic fringing field extending beyond the free ends. Magnetorheological fluid conveyed into the gap by the carrier surface is magnetically stiffened to a very stiff paste which is retained in the gap by the fringing field, forming a dynamic liquid seal such that additional magnetorheological fluid carried by the carrier surface is wiped away from the surface and into the trough formed by the inner polepiece. Thus, the magnet forms an effective remover of magnetorheological fluid from the carrier surface without any mechanical contact with the surface.

公开(公告)号：US5839944A

公开(公告)日：1998-11-24

申请号：US891763

申请日：1997-07-14

申请人： Stephen David Jacobs ,  William Kordonski ,  Igor Victorovich Prokhorov ,  Donald Golini ,  Gennadii Rafailovich Gorodkin ,  Tvasta David Strafford

发明人： Stephen David Jacobs ,  William Kordonski ,  Igor Victorovich Prokhorov ,  Donald Golini ,  Gennadii Rafailovich Gorodkin ,  Tvasta David Strafford

IPC分类号： B24B1/00 ,  B24B9/14 ,  B24B31/112 ,  H01F1/44 ,  B24B49/00

CPC分类号： B24B31/112 ,  B24B1/005 ,  B24B9/14 ,  H01F1/447

摘要： A method and apparatus for finishing a workpiece surface using MR fluid is provided wherein the workpiece is positioned near a carrier surface such that a converging gap is defined between a portion of the workpiece surface and the carrier surface; a magnetic field is applied substantially at said gap; a flow of stiffened MR fluid is introduced into said converging gap such that a work zone is created in the MR fluid to form a sub-aperture transient finishing tool for engaging and causing material removal at the portion of the workpiece surface; and the workpiece or the work zone is moved relative to the other to expose different portions of the workpiece surface to the work zone for predetermined time periods to selectively finish said portions of said workpiece surface to predetermined degrees.

摘要翻译： 提供了一种使用MR流体来完成工件表面的方法和装置，其中工件位于载体表面附近，使得在工件表面的一部分和载体表面之间限定会聚间隙; 基本上在所述间隙施加磁场; 加强的MR流体的流动被引入所述会聚间隙中，使得在MR流体中产生工作区以形成用于在工件表面的部分处接合和引起材料去除的子孔径瞬时精加工工具; 并且工件或工作区相对于另一工件移动，以将工件表面的不同部分暴露于工作区预定的时间段，以选择性地将所述工件表面的所述部分完成预定的程度。

公开(公告)号：US20120164925A1

公开(公告)日：2012-06-28

申请号：US12977180

申请日：2010-12-23

申请人： William Kordonski ,  Sergei Gorodkin ,  Arpad Sekeres

发明人： William Kordonski ,  Sergei Gorodkin ,  Arpad Sekeres

IPC分类号： B24B19/00 ,  B24B57/00

CPC分类号： B24B31/112 ,  B24B1/005

摘要： A system for magnetorheological finishing of a substrate. An integrated fluid management module (IFMM) provides dynamic control of the rheological fluid properties of the MR fluid on a conventional MR finishing apparatus, and dispensing of the fluid to the wheel. A magnetically shielded chamber charged with MR fluid is in contact with the carrier wheel. A transverse line removes the spent MR fluid from the wheel as the ribbon leaves the work zone. Replenishment fluid is added to the chamber via a dripper, and preferably an electric mixer agitates MR fluid in the chamber. A grooved magnetically-shielded insert at the exit of the chamber forms a polishing ribbon on the carrier wheel as the wheel is turned. A sensor sensitive to concentration of magnetic particles provides a signal for control of MR fluid properties, particularly, water content in the MR fluid. Means is provided for cooling fluid within the chamber.

摘要翻译： 一种基板磁流变整理系统。 集成流体管理模块（IFMM）提供对常规MR整理装置上MR流体的流变流体特性的动态控制，以及将流体分配到车轮。 装有MR流体的磁屏蔽室与承载轮接触。 当条带离开工作区时，横向线从轮上移除废的MR流体。 补充液通过滴液器加入到腔室中，优选地，电动搅拌器搅拌腔室中的MR流体。 在腔室出口处的槽形磁屏蔽插入件在车轮转动时在载体轮上形成抛光带。 对磁性颗粒浓度敏感的传感器提供了用于控制MR流体性质，特别是MR流体中的含水量的信号。 提供了用于在室内冷却流体的装置。

公开(公告)号：US20110312248A1

公开(公告)日：2011-12-22

申请号：US13254640

申请日：2010-03-02

申请人： William Kordonski

发明人： William Kordonski

IPC分类号： B24B51/00 ,  H01F7/02

CPC分类号： B24B1/005 ,  B24B31/102 ,  B24B31/112

摘要： A system for magnetorheological finishing of a substrate. A spherical wheel meant for carrying a magnetorheological finishing fluid houses a variable-field permanent magnet system having north and south iron pole pieces separated by primary and secondary gaps with a cylindrical cavity bored through the center. A cylindrical permanent magnet magnetized normal to the cylinder axis is rotatably disposed in the cavity. An actuator allows rotation of the permanent magnet to any angle, which rotation changes the distribution of flux in the magnetic circuit through the pole pieces. Thus, one can control field intensity in the gaps by positioning the permanent magnet at whatever angle provides the required field strength. Because the field also passes above the pole pieces, defining a fringing field outside the wheel surface, the variable field extends through a layer of MR fluid on the wheel, thus varying the stiffness of the MR fluid as may be desired for finishing control.

摘要翻译： 一种基板磁流变整理系统。 用于承载磁流变精整流体的球面球体容纳有可变场永磁体系统，其具有由主中间和第二间隙分开的北和南铁极片以及通过中心钻孔的圆柱形腔。 磁体垂直于气缸轴线的圆柱形永磁体可旋转地设置在空腔中。 致动器允许永磁体旋转任何角度，该旋转改变磁路中磁通量通过极片的分布。 因此，可以通过将永磁体定位在提供所需场强的任何角度来控制间隙中的场强度。 由于磁场也通过极片上方，在车轮表面外部限定了一个边缘场，所以可变场延伸穿过车轮上的一层MR流体，从而改变MR流体的刚度，这可能是为了完成控制所需要的。

公开(公告)号：US20100079137A1

公开(公告)日：2010-04-01

申请号：US12449655

申请日：2008-02-27

申请人： William Kordonski ,  Arpad Sekeres ,  Robert James

发明人： William Kordonski ,  Arpad Sekeres ,  Robert James

IPC分类号： G01N27/72

CPC分类号： B24B1/005 ,  G01N27/76

摘要： A system for determining magnetic permeability of a material. Two electrical inductors formed as primary and secondary concentric coils share a common magnetic core space. A first AC voltage applied to the primary coil creates a magnetic flux in the core proportional to the magnetic permeability of the material. The magnetic flux induces an AC voltage in the secondary coil indicative of the apparent magnetic permeability of the sample. The apparent permeability is corrected for conductivity by imposing a second AC voltage and resistor in series across first and second electrodes disposed in the material. When the material is a magnetorheological fluid, the magnetic permeability is proportional to the concentration of magnetic particles in the sample and can be back-calculated from the amplitude of the secondary voltage signal.

摘要翻译： 一种用于确定材料的磁导率的系统。 形成为主要和次级同心线圈的两个电感器共享共同的磁芯空间。 施加到初级线圈的第一AC电压在芯中产生与该材料的磁导率成比例的磁通量。 磁通量引起次级线圈中的交流电压，表示样品的表观磁导率。 通过在设置在材料中的第一和第二电极上串联施加第二交流电压和电阻器来校正电导率的表观磁导率。 当材料是磁流变流体时，磁导率与样品中磁性颗粒的浓度成比例，可以从次级电​​压信号的幅度反向计算。

公开(公告)号：US20080214092A1

公开(公告)日：2008-09-04

申请号：US11681258

申请日：2007-03-02

申请人： William Kordonski ,  Arpad Sekeres ,  Robert James

发明人： William Kordonski ,  Arpad Sekeres ,  Robert James

IPC分类号： B24B1/00 ,  G01N27/74

CPC分类号： B24B1/005 ,  G01N27/76

摘要： A system for determining the magnetic permeability of a material is provided. Two electrical inductors formed as primary and secondary concentric coils share a common magnetic core space. An AC voltage applied to the primary coil creates a magnetic flux in the core proportional to the magnetic permeability of a sample of the material positioned within the core space. The magnetic flux induces an AC voltage in the secondary coil indicative of the sample magnetic permeability. When the material is a magnetorheological fluid, the magnetic permeability is proportional to the concentration of magnetic particles in the sample and can be back-calculated from the amplitude of the secondary voltage signal. Sensitivity and resolution can be increased by using two identical sets of coils wherein a reference material forms a core for the primary set and the MR fluid sample forms a core for the secondary set.

摘要翻译： 提供了用于确定材料的磁导率的系统。 形成为主要和次级同心线圈的两个电感器共享共同的磁芯空间。 施加到初级线圈的交流电压产生磁芯中的磁通量，该磁通量与定位在磁芯空间内的材料的样品的磁导率成比例。 磁通量在次级线圈中产生表示样品磁导率的AC电压。 当材料是磁流变流体时，磁导率与样品中磁性颗粒的浓度成比例，可以从次级电​​压信号的幅度反向计算。 可以通过使用两组相同的线圈来提高灵敏度和分辨率，其中参考材料形成用于初级组的芯，并且MR流体样品形成用于次级组的芯。

公开(公告)号：US20060125191A1

公开(公告)日：2006-06-15

申请号：US11012645

申请日：2004-12-15

申请人： William Kordonski ,  Andy Price ,  Jerry Carapella ,  Arpad Sekeres

发明人： William Kordonski ,  Andy Price ,  Jerry Carapella ,  Arpad Sekeres

IPC分类号： F16J15/43

CPC分类号： F16J15/43

摘要： An arcuate, preferably cylindrical, magnetic shunt bar supports a plurality of pin magnets having alternate north and south orientations, defining a ring-shaped array of magnets of alternating orientation. The magnet free ends opposite the shunt bar are positioned to conform closely to the shape of a surface to be sealed, forming a narrow gap therebetween containing a multi-polar magnetic field extending beyond the free ends in a direction substantially orthogonal to the surface. The axes of the magnets may be disposed at any desired angular orientation to the surface. Magnetorheological fluid (MRF) in the gap is magnetically stiffened and held as a dynamic seal. The arrangement is useful as a shaft seal, wherein the seal surface passes axially through the array, and also as a wiper for MRF from a carrier surface wherein the surface passes by the array.

摘要翻译： 弧形，优选圆柱形的磁分路杆支撑具有交替的北和南取向的多个销磁体，限定交替定向的磁体的环形阵列。 与分流棒相对的磁体自由端被定位成紧密地与待密封的表面的形状紧密地形成，在它们之间形成狭窄的间隙，其间包含大致垂直于表面的方向延伸超过自由端的多极磁场。 磁体的轴可以以任何期望的角度方向设置到表面。 间隙中的磁流变流体（MRF）被磁力加强并保持为动态密封。 该装置作为轴密封是有用的，其中密封表面轴向地穿过阵列，并且还可以作为用于表面经过阵列的载体表面的MRF的擦拭器。