CA2497732A1 - Magnetorheological fluid - Google Patents

Magnetorheological fluid Download PDF

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Publication number
CA2497732A1
CA2497732A1 CA002497732A CA2497732A CA2497732A1 CA 2497732 A1 CA2497732 A1 CA 2497732A1 CA 002497732 A CA002497732 A CA 002497732A CA 2497732 A CA2497732 A CA 2497732A CA 2497732 A1 CA2497732 A1 CA 2497732A1
Authority
CA
Canada
Prior art keywords
fluid
magnetorheological fluid
polishing
magnetorheological
protective material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002497732A
Other languages
French (fr)
Other versions
CA2497732C (en
Inventor
William I. Kordonsky
Igor V. Prokhorov
Sergei R. Gorodkin
Gennadii R. Gorodkin
Leonid K. Gleb
Bronislav E. Kashevsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QED Technologies International LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/071,813 external-priority patent/US5449313A/en
Application filed by Individual filed Critical Individual
Publication of CA2497732A1 publication Critical patent/CA2497732A1/en
Application granted granted Critical
Publication of CA2497732C publication Critical patent/CA2497732C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

A method of polishing an object is disclosed. In one embodiment, as shown in the figure, the method comprises the steps of creating a polishing zone (10) within a magnetorheological fluid (2); determining the characteristics of the contact between the object and the polishing zone necessary to polish the object (4); controlling the consistency of the fluid (2) in the polishing zone (10);
bringing the object (4) into contact with the polishing zone (10) of the fluid (2); and moving at least one of said object (4) and said fluid (2) with respect to the other. Also disclosed is a polishing device (1). In one embodiment, the device comprises a magnetorheological fluid (2), a means (6) for inducing a magnetic field, and a means for displacing the object (4) to be polished or the means (6) for inducing a magnetic field relative to one another.

Claims (8)

1. A magnetorheological fluid comprising magnetic particles coated with a layer of protective material to inhibit oxidation thereof, a stabilizer and a carrying fluid.
2. The magnetorheological fluid of claim 1, wherein said protective material comprises a polymer.
3. The magnetorheological fluid of claim 1, wherein said protective material comprises teflon.
4. The magnetorheological fluid of claim 1, wherein said carrying fluid comprises water.
5. The magnetorheological fluid of claim 1, wherein said carrying fluid comprises glycerin.
6. The magnetorheological fluid of claim 1, wherein said magnetic particles comprise carbonyl iron particles.
7. The magnetorheological fluid of claim 1, further comprising abrasive particles.
8. The magnetorheological fluid of claim 7, wherein said abrasive particles comprise CeO2.
CA2497732A 1993-06-04 1994-06-03 Magnetorheological fluid Expired - Lifetime CA2497732C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/071,813 US5449313A (en) 1992-04-14 1993-06-04 Magnetorheological polishing devices and methods
US08/071,813 1993-06-04
BY863 1993-12-09
BY00863-01 1993-12-09
CA002163671A CA2163671C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002163671A Division CA2163671C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods

Publications (2)

Publication Number Publication Date
CA2497732A1 true CA2497732A1 (en) 1994-12-22
CA2497732C CA2497732C (en) 2011-03-01

Family

ID=25665737

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002163671A Expired - Lifetime CA2163671C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods
CA2497732A Expired - Lifetime CA2497732C (en) 1993-06-04 1994-06-03 Magnetorheological fluid
CA002497731A Expired - Lifetime CA2497731C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002163671A Expired - Lifetime CA2163671C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002497731A Expired - Lifetime CA2497731C (en) 1993-06-04 1994-06-03 Magnetorheological polishing devices and methods

Country Status (7)

Country Link
EP (1) EP0703847B1 (en)
JP (2) JPH08510695A (en)
KR (1) KR100335219B1 (en)
AT (1) ATE215869T1 (en)
CA (3) CA2163671C (en)
DE (1) DE69430370T2 (en)
WO (1) WO1994029077A1 (en)

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EP0687525A1 (en) * 1994-06-13 1995-12-20 Read-Rite Corporation A lapping system for automatic contouring
JP4805640B2 (en) * 2005-09-16 2011-11-02 株式会社リコー Surface treatment equipment
JP2007326183A (en) * 2006-06-08 2007-12-20 Fdk Corp Magnetic polishing liquid
US7364493B1 (en) 2006-07-06 2008-04-29 Itt Manufacturing Enterprises, Inc. Lap grinding and polishing machine
KR100788796B1 (en) 2006-11-20 2007-12-27 연세대학교 산학협력단 Manufacture method of nano-structures by using focused ion beam and magneto-rheological fluid
US8974268B2 (en) * 2010-06-25 2015-03-10 Corning Incorporated Method of preparing an edge-strengthened article
US9102030B2 (en) 2010-07-09 2015-08-11 Corning Incorporated Edge finishing apparatus
JP5124034B2 (en) * 2011-06-14 2013-01-23 有限会社村松研磨工業 Barrel polishing equipment
CN102284890A (en) * 2011-09-26 2011-12-21 厦门大学 Surface-shaped self-adaptive rotary-shaft symmetric optical component polishing device
EA024869B1 (en) * 2013-12-27 2016-10-31 Государственное Научное Учреждение "Институт Тепло- И Массообмена Имени А.В. Лыкова Национальной Академии Наук Беларуси" Method of magnetorheologic forming and polishing of surface with irregular shape
CN104308671B (en) * 2014-10-09 2017-01-11 东北大学 Magnetorheological polishing device and method
CN105014484A (en) * 2015-08-17 2015-11-04 宇环数控机床股份有限公司 Magnetic field generation device of magnetorheological polishing equipment
CN107378651A (en) * 2017-08-04 2017-11-24 北京交通大学 A kind of magnetorheological plane polishing device
KR101932413B1 (en) * 2017-08-29 2018-12-27 인하대학교 산학협력단 Surface brightness making device
KR101994029B1 (en) * 2018-01-02 2019-09-30 인하대학교 산학협력단 Flat surface grinding apparatus
US11440156B2 (en) * 2018-06-19 2022-09-13 Islamic Azad University of Najafabad Magnetic abrasive finishing of curved surfaces
CN108789117B (en) * 2018-06-20 2020-05-05 中国科学院上海光学精密机械研究所 Efficient polishing machine and polishing method for meter-level large-caliber optical element
CN109623507A (en) * 2019-01-02 2019-04-16 中国科学院上海光学精密机械研究所 YAG slab laser crystal reflection face shape processing method
CN110421412A (en) * 2019-09-05 2019-11-08 河北工业大学 A kind of small-sized magnetorheological plane polishing device
CN112123029B (en) * 2020-09-25 2022-09-06 山东理工大学 Magnetic field-assisted microstructure vibration finishing device and finishing method
CN112536649A (en) * 2020-12-21 2021-03-23 浙江师范大学 Optical glass polishing method and device based on magnetic abrasive particle flow
CN113561035B (en) * 2021-07-30 2023-04-11 西安工业大学 Point cloud alternating magnetorheological polishing device and method
CN113752098B (en) * 2021-09-29 2022-06-21 哈尔滨工业大学 Water-bath heating-assisted small ball head magnetorheological polishing method
CN113941904B (en) * 2021-10-29 2022-07-29 哈尔滨工业大学 Small ball head magnetorheological polishing process method based on rotary ultrasonic vibration of small-sized revolving body part
CN113878413B (en) * 2021-11-15 2022-12-13 华圭精密科技(东莞)有限公司 Polishing anti-collision magnetorheological polishing machine and control method
CN114055258B (en) * 2021-11-19 2023-04-18 浙江师范大学 Magnetic polishing device and magnetic polishing control method
CN117428580B (en) * 2023-12-15 2024-03-19 成都市凯林机械贸易有限责任公司 Polishing device for valve machining

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US2735231A (en) * 1953-05-22 1956-02-21 Reflectone Corp simjian
US3848363A (en) * 1973-02-20 1974-11-19 Minnesota Mining & Mfg Apparatus for treating objects with particles moved by magnetic force
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JP2889664B2 (en) * 1990-07-19 1999-05-10 株式会社リコー Rotation amount measurement method

Also Published As

Publication number Publication date
CA2163671A1 (en) 1994-12-22
JP4741212B2 (en) 2011-08-03
EP0703847A4 (en) 1997-07-09
WO1994029077A1 (en) 1994-12-22
EP0703847A1 (en) 1996-04-03
KR100335219B1 (en) 2002-11-07
JP2005040944A (en) 2005-02-17
DE69430370D1 (en) 2002-05-16
ATE215869T1 (en) 2002-04-15
JPH08510695A (en) 1996-11-12
CA2163671C (en) 2005-10-25
KR960702786A (en) 1996-05-23
CA2497732C (en) 2011-03-01
CA2497731C (en) 2006-02-07
CA2497731A1 (en) 1994-12-22
DE69430370T2 (en) 2002-12-12
EP0703847B1 (en) 2002-04-10

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Effective date: 20140603