期刊论文

Wang, Yongqiang

英文

International Journal of Advanced Manufacturing Technology

0268-3768

2018

97

9-12

3583-3594

10.1007/s00170-018-2199-z

This work was financially supported by the Natural Science Foundation of Hunan province (Grant no. 2018JJ2328), the Foundation of Education Department of the Hunan province (Grant no. 17C1368), the Doctor Start-up Foundation of University of South China (Grant no. 2016XQD38), and the Science and Technology Development Plan Project in Hengyang (Grant no. 2017KJ291).

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A magnetorheological polishing was proposed to be used for optical glass mold finishing, aiming at suppressing middle spatial frequency errors from ultra-precision grinding while improving surface roughness. A small polishing head, with a cylindrical permanent magnet enveloped by a nonmagnetic outer shell, was also developed. Polishing experiments were performed on concave aspheric tungsten carbide molds. The results demonstrated the developed magnetorheological polishing successfully suppressed the middle spatial frequency errors on the optical mold by decreasing amplitude to 1 nm, while...