Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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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

  • 이정원 (인하대학교 기계공학과) ;
  • 하석재 (인하대학교 기계공학과) ;
  • 신봉철 (인하대학교 기계공학과) ;
  • 김동우 (인하대학교 기계공학과) ;
  • 조명우 (인하대학교 기계공학과) ;
  • 최형진 (인하대학교 고분자신소재공학과)
  • Received : 2011.11.29
  • Accepted : 2012.02.17
  • Published : 2012.04.01
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Abstract

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.

Keywords

References

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