Profile and roughness of electrorheological finishing optical surfaces

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)306-313
Journal / PublicationFrontiers of Optoelectronics
Volume8
Issue number3
Publication statusPublished - 29 Sep 2015

Abstract

This paper focuses on the process of electrorheological (ER) finishing optical surfaces. Experiments on K9 mirrors were conducted. In one experiment, the operating distance was varied over 0.5–0.8 mm with the voltage at 2000 V. The maximum peak-to-valley (PV) reduction was obtained at the distance of 0.5 mm, where the PV value was reduced from 58.71 to 25.03 nm. In another experiment, the voltage was varied over 1500–3000 V with operating distance at 0.5 mm. The final surface roughness (Ra) achieved was as low as 2.5 nm. A higher voltage produced a higher relative reduction of the Ra. These experimental results validated the process.

Research Area(s)

  • electrorheological (ER), finishing, surface roughness

Citation Format(s)

Profile and roughness of electrorheological finishing optical surfaces. / Cheng, Haobo; Su, Jingshi; Chen, Yong; Tam, Hon-Yuen.

In: Frontiers of Optoelectronics, Vol. 8, No. 3, 29.09.2015, p. 306-313.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal