Share Email Print
cover

Proceedings Paper

Numerical simulation of pitch button blocking optimization
Author(s): Lunzhe Wu; Wenlan Gao; Aihuan Dun; Minghong Yang; Chaoyang Wei; Xueke Xu; Jianda Shao
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An ideal pitch button blocking process determines the level of workpiece deformation, especially the high-aspect-ratio optics, during the blocking process and process of polishing later. We have studied the pitch button blocking process by Finite Element Analysis (FEA) according to the thermoelastic equation. Meanwhile, the optimized pitch button blocking has been gotten by FEA which includes the thickness and material of blocking plate, as well as the radius, arrangement, elastic modulus and coefficient of thermal expansion of pitch buttons. The numerical simulation of Nd:glass (Ø100 mm×2 mm thickness) shows that the surface figure change (ΔPV) which is induced by the thermal stress during pitch button blocking process is influenced seriously by the thickness of blocking plate.

Paper Details

Date Published: 30 June 2016
PDF: 5 pages
Proc. SPIE 10009, Third European Seminar on Precision Optics Manufacturing, 1000911 (30 June 2016); doi: 10.1117/12.2236356
Show Author Affiliations
Lunzhe Wu, Shanghai Univ. (China)
Wenlan Gao, Shanghai Institute of Optics and Fine Mechanics (China)
Aihuan Dun, Shanghai Institute of Optics and Fine Mechanics (China)
Minghong Yang, Shanghai Institute of Optics and Fine Mechanics (China)
Chaoyang Wei, Shanghai Institute of Optics and Fine Mechanics (China)
Xueke Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10009:
Third European Seminar on Precision Optics Manufacturing
Rolf Rascher; Oliver Fähnle; Christine Wünsche; Christian Schopf, Editor(s)

© SPIE. Terms of Use
Back to Top