Share Email Print
cover

Proceedings Paper • new

Study of ultra-precision polishing of electroless nickel molding dies
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Electroless nickel is an excellent material for making optical molding dies, because of its machinability with both single-point diamond turning and polishing, as well as its suitable hardness and durability. This paper deals with the ultra-precision polishing of molding dies for telescope mirrors with a super smooth surface with a roughness below 1 nm root-mean- square (rms). According to the probability density distribution function of different sizes of abrasive grains cut into the workpiece, a surface roughness model combining the micro contact model and the force balance principle was established. A surface roughness of 0.316 nm Ra was obtained on slab molding dies of 30 mm in diameter.

Paper Details

Date Published: 11 January 2019
PDF: 12 pages
Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 108371B (11 January 2019); doi: 10.1117/12.2516878
Show Author Affiliations
Jiadai Xue, Harbin Institute of Technology (China)
Yangong Wu, Harbin Institute of Technology (China)
Jiewei Luo, Harbin Institute of Technology (China)
Da Qu, Harbin Institute of Technology (China)
Yutao Liu, Harbin Institute of Technology (China)
Bo Wang, Harbin Institute of Technology (China)
Yanji Yang, Institute of High Energy Physics (China)


Published in SPIE Proceedings Vol. 10837:
9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Xiaoliang Ma; Bin Fan; Yongjian Wan; Adrian Russell; Xiangang Luo, Editor(s)

© SPIE. Terms of Use
Back to Top