• Title/Summary/Keyword: D.W.S method

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Characteristics of MR Polishing using Carbonyl Iron Particles Coated with Xanthan Gum (Xanthan Gum으로 코팅된 Carbonyl Iron Particle를 이용한 자기유변유체 연마특성에 관한 연구)

  • Lee, J.W.;Ha, S.J.;Shin, B.C.;Kim, D.W.;Cho, M.W.;Choi, H.J.
    • Transactions of Materials Processing
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    • v.21 no.2
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    • pp.138-143
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    • 2012

  • A polishing method using magnetorheological (MR) fluid has been developed as a new precision technique to obtain a fine surface. The process uses a MR fluid that consists of magnetic carbonyl iron (CI) particles, nonmagnetic polishing abrasives, water and stabilizers. But the CI particles in MR fluids cause a severe corrosion problem. When coated with Xanthan gum, the CI particles showed long-term stability in corrosive aqueous environment. The surface roughness obtained from the MR polishing process was evaluated. A series of experiments were performed on fused silica glass using prepared slurries and various process conditions, including different polishing times. Outstanding surface roughness of Ra=2.27nm was obtained on the fused silica glass. The present polishing method could be used to produce ultra-precision micro parts.

  • https://doi.org/10.5228/KSTP.2012.21.2.138 인용 PDF KSCI