The electromechanical principle of electrorheological fluid-assisted polishing

W. B. Kim, S. J. Lee, Y. J. Kim, E. S. Lee

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

An up-to-date abrasive polishing process using electrorheological (ER) fluid, known as ER fluid assisted polishing, is potentially useful in the surface finish of three dimensional micro or meso-scale devices. For a more detailed understanding of this process, the electrostatic principle of how an ER fluid functions on the polishing is described. Dielectric particles suspended in a dielectric fluid are polarized with the application of an electric field, and they experience the dipolar interaction force each other and the translational force along the field, defined as dielectrophoresis due to the non-uniform electric field. As a result of the calculations of the exerted forces on the ER and abrasive particle suspended in silicone oil, ER particles strongly attract the abrasive particles as well as each other when they are aligned with the electric field. Because this attraction force is much higher than the dielectrophoretic force, abrasive particles adhere to ER particles which concentrate on a tool along the field lines. The behavior of particles is observed by the CCD camera, and borosilicate glass is polished to evaluate machining performance.

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalInternational Journal of Machine Tools and Manufacture
Volume43
Issue number1
DOIs
Publication statusPublished - 2003 Jan

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (grant No. R01-2001-000-00391-0) and the Ministry of Commerce, Industry and Energy is gratefully acknowledged. The authors also thank to Dr. S.B. Choi and Dr. H.G. Lee, Inha university, for providing the ER fluid.

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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