한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)

한국정밀공학회 (Korean Society for Precision Engineering)
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연마공정에서 MR 유체의 트라이볼로지적 성질에 대한 연구

A Study on Tribological Properties of Magneto-Rheological Fluid (MRF) in Polishing Process

  • Lee S.O. (School of Mechanical Engineering, Yonsei University) ;
  • Jang K.I. (School of Mechanical Engineering, Yonsei University) ;
  • Min B.K. (School of Mechanical Engineering, Yonsei University) ;
  • Lee S.J. (School of Mechanical Engineering, Yonsei University) ;
  • Seok J. (School of Mechanical Engineering, Chung-Ang University)
  • 발행 : 2006.05.01
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초록

Tribological properties of a Magneto-Rheological(MR) fluid in a polishing process are studied. For this polishing process, abrasive wear model is proposed as a function of shear force, normal force and actual mean velocity of MR particles at workpiece surface. Experimental conditions are changed by varying the gap distance between workpiece and tool and the rotational speed of tool. From the experimental results, a modified Stribeck curve is obtained, and the friction coefficient turns out to have linear relationship with a modified Sommerfeld number. The validity of the wear model is supported by additional experiments performed for measuring material removal rates.

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