Title: A two-dimensional material removal model in magnetorheological finishing

Authors: Feng Jun Chen, Shao Hui Yin, Hitoshi Ohmori, Wei Min Lin

Addresses: National Engineering Research Centre for High Efficiency Grinding, Hunan University, Changsha 410082, PR China. ' National Engineering Research Centre for High Efficiency Grinding, Hunan University, Changsha 410082, PR China. ' Ohmori Materials Fabrication Laboratory, The Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ' Ohmori Materials Fabrication Laboratory, The Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Abstract: Magnetorheological Finishing (MRF) is a new advanced optics and precision mould manufacturing technology. According to the sharp rheological characteristics of magnetorheological fluid in the magnetic field, and based on earlier research, the Preston equation, the Reynolds equation and its boundary conditions are revised and extended. The material removal model in two-dimensional directions is built and analysed by simulation. Especially the influence of workpiece materials is considered. Finally, the MRF experiment is carried out, and the influence rules of the immersed depth and material kinds are studied. The experimental data are compared with the material removal model result, which confirms the mathematical model validity. The model establishment and the processing experiment will provide the important theory and experimental references for deterministic Computer Numerical Control (CNC) nanometer process of complex optics parts.

Keywords: magnetorheological fluids; magnetorheological finishing; MRF; removal modelling; material removal rate; MRR; determinable machining; surface damage; abrasive technology; shear stress; optics manufacture; simulation; magnetorheology; precision mould manufacturing.

DOI: 10.1504/IJAT.2008.020560

International Journal of Abrasive Technology, 2008 Vol.1 No.3/4, pp.251 - 264

Available online: 30 Sep 2008 *

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