Numerical simulation of pitch button blocking optimization

Lunzhe Wu; Wenlan Gao; Aihuan Dun; Minghong Yang; Chaoyang Wei; Xueke Xu; Jianda Shao

doi:10.1117/12.2236356

30 June 2016 Numerical simulation of pitch button blocking optimization

Lunzhe Wu, Wenlan Gao, Aihuan Dun, Minghong Yang, Chaoyang Wei, Xueke Xu, Jianda Shao

Proceedings Volume 10009, Third European Seminar on Precision Optics Manufacturing; 1000911 (2016) https://doi.org/10.1117/12.2236356
Event: Third European Seminar on Precision Optics Manufacturing, 2016, Teisnach, Germany

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.

Citation Download Citation

Lunzhe Wu, Wenlan Gao, Aihuan Dun, Minghong Yang, Chaoyang Wei, Xueke Xu, and Jianda Shao "Numerical simulation of pitch button blocking optimization", Proc. SPIE 10009, Third European Seminar on Precision Optics Manufacturing, 1000911 (30 June 2016); https://doi.org/10.1117/12.2236356

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available