Research on a Novel Lap Magnetorhieological Finishing (Lap-MRF)Method
A kind of novel Lap-MRF is proposed, which combines the advantages of magnetorheological finishing (MRF) and Computer Controlled Optical Surfacing (CCOS).The magnetorheological fluid (MR fluid) in the polishing zones can be renewed continuously so that the determinacy is ensured.A lap, instead of a large polishing wheel, is used to expand the polishing area,which improves the material removal rate largely.Lap-MRF uses flexible MR fluid as polishing pad to match the surface well.Moreover, the polishing pad executes planetary motion so as to obtain smooth surface.In this paper, the polishing head structure of Lap-MRF is presented.Using the finite element analysis (FEA) method, the permanent magnet unit is simulated and analyzed.Finally, a series of polishing experiments are carried out and the results verify the validity of the proposed method, which makes Lap-MRF to be a promising finishing technology.
Lap-MRF Magnetostatic simulation Removal stability Material removal rate Surface roughness
Feng Guan Hao Hu Shengyi Li Xiaoqiang Peng Feng Shi
College of Mechatronic Engineering and Automation, National University of Defense Technology,Changsha 410073, China;Hunan Key Laboratory of Ultra-precision Machining Technology, Changsha 410073, China
国际会议
上海
英文
17-22
2017-11-19（万方平台首次上网日期，不代表论文的发表时间）