Abstract
Based on magnetorheological (MR) fluid, a viscoplastic cluster MR effect pad was formed between the surface of the polishing plate and workpiece. Then an accommodate-sinking effect (AS effect) of MR effect pad on abrasives was presented. A set of experiments were conducted by adding the rogue particles to polish the damage-free K9 glasses and to study the influence of the rogue particles and carbonyl iron particles (CIPs), and the machining parameters on AS effect. The surface roughness of the machined surface was measured and adopted as the parameter of evaluating the AS effect, and a Keyence VHX-600 microscope was used to investigate the machined surface. Experimental results indicated that when the size and concentration of rogue particles were no more than the threshold value, a well AS effect on abrasives aided in obtaining a super smooth surface. The maximal contribution was made by a machining gap on AS effect, followed by the rotational speeds of workpiece and polishing plate, while the least contribution was from the flow rate of MR fluid. The recommended machining parameters for obtaining a super smooth surface (Ra 1.4 nm, Rv 4.6 nm) are a machining gap of 1.2 mm, rotational speeds of 60 and 350 rpm for polishing plate and workpiece respectively, and MR fluid flow rate of 1,000 ml/min.
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Bai, Z., Yan, Q., Lu, J. et al. Parametric investigation into accommodate-sinking effect of cluster magnetorheological effect pad. Int J Adv Manuf Technol 75, 1447–1456 (2014). https://doi.org/10.1007/s00170-014-6239-z
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DOI: https://doi.org/10.1007/s00170-014-6239-z