The principle and characteristics of magnetorheological finishing(MRF)are introduced
and a standard is suggested for evaluation of MR fluid finishing of optical glass. The elements of MR fluid were chosen according to the standard and MR fluid was prepared for optical finishing. The yield stress of this MR fluid is 70 kPa at a shear rate of 110 rad/s and in a magnetic field of 600 mT. An experimental finishing was conducted with K9 optical glass using the developed MR fluid
and experimental results show that the maximum removal rate of optical glass is 0.4 μm/min.
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references
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中国科学院长春光学精密机械与物理研究所
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