Computing and Library Services - delivering an inspiring information environment

Edge control in CNC polishing, paper 2: simulation and validation of tool influence functions on edges

Li, Hongyu, Walker, David D., Yu, Guoyu, Sayle, Andrew, Messelink, Wilhelmus, Evans, Rob and Beaucamp, Anthony (2013) Edge control in CNC polishing, paper 2: simulation and validation of tool influence functions on edges. Optics Express, 21 (1). pp. 370-381. ISSN 1094-4087

Metadata only available from this repository.


Edge mis-figure is regarded as one of the most difficult technical issues for manufacturing the segments of extremely large telescopes, which
can dominate key aspects of performance. A novel edge-control technique has been developed, based on ‘Precessions’ polishing technique and for
which accurate and stable edge tool influence functions (TIFs) are crucial. In the first paper in this series [D. Walker Opt. Express 20, 19787–19798 (2012)], multiple parameters were experimentally optimized using an extended set of experiments. The first purpose of this new work is to ‘short circuit’ this procedure through modeling. This also gives the prospect of
optimizing local (as distinct from global) polishing for edge mis-figure, now under separate development. This paper presents a model that can
predict edge TIFs based on surface-speed profiles and pressure distributions over the polishing spot at the edge of the part, the latter calculated by finite element analysis and verified by direct force measurement. This paper also presents a hybrid-measurement method for edge TIFs to verify the simulation results. Experimental and simulation results show good agreement.

Item Type: Article
Uncontrolled Keywords: Optical design and fabrication, Polishin, Mirrors, Telescopes
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Schools: School of Computing and Engineering
Related URLs:

1. D. D. Walker, G. Yu, H. Li, W. Messelink, R. Evans, and A. Beaucamp, “Edges in CNC polishing: from mirrorsegments
towards semiconductors, Paper 1: edges on processing the global surface,” Opt. Express 20(18),
19787–19798 (2012).
2. R. Gilmozzi, “Science and technology drivers for future giant telescopes,” Proc. SPIE 5489, 1–10 (2004).
3. H. M. Martin, J. Burge, H. B. Cuerden, S. M. Miller, B. Smith, and C. Zhao, “Manufacture of 8.4m off-axis
segments: a 1/5 scale demonstration,” Proc. SPIE 5494, 62–70 (2004).
4. H. M. Martin, R. G. Allen, B. Cuerden, J. M. Hill, D. A. Ketelsen, S. M. Miller, J. M. Sasian, M. T. Tuell, and S.
Warner, “Manufacture of the second 8.4m primary mirror for the Large Binocular Telescope,” Proc. SPIE 6273,
62730C1 (2006).
5. J. E. Nelson, “Design concepts for the California Extremely Large Telescope (CELT),” Proc. SPIE 4004, 282–
289 (2000).
6. R. Geyl, M. Cayrel, and M. Tarreau, “Glan Tlescope Canarias optics manufacture: progress report3,” Proc. SPIE
5494, 57–61 (2004).
7. A. P. Semenov, M. A. Abdulkadyrov, A. N. Ignatov, V. Patrikeev, V. V. Pridnya, A. V. Polyanchikov, and Y. A.
Sharov, “Fabrication of blank, figuring, polishing and testing of segmented astronomic Mirrors for SALT AND
LAMOST project,” Proc. SPIE 5494, 31–38 (2004).
8. T. S. Mast and J. E. Nelson, “The fabrication of large optical surface using a combination of polishing and
mirror bending,” Proc. SPIE 1236, 670–681 (1990).
9. D. D. Walker, D. Brooks, A. King, R. Freeman, R. Morton, G. McCavana, and S. W. Kim, “The ‘Precessions’
tooling for polishing and figuring flat, spherical and aspheric surfaces,” Opt. Express 11(8), 958–964 (2003).
10. H. Li, G. Yu, D. D. Walker, and R. Evans, “Modeling and measurement of polishing tool influence functions for
edge control,” J. Eur. Opt. Soc. Rap. Pub. 6, 1104801–1104806 (2011).
11. F. W. Preston, “The theory and design of plate glass polishing machines,” J. Soc. Glass Technol. 11, 214–256
12. R. E. Wagner and R. R. Shannon, “Fabrication of aspherics using a mathematical model for material removal,”
Appl. Opt. 13(7), 1683–1689 (1974).
13. R. A. Jones, “Computer-controlled optical surfacing with orbital tool motion,” Opt. Eng. 25(6), 785–790 (1986).
14. A. Cordero-Dávila, J. González-García, M. Pedrayes-López, L. A. Aguilar-Chiu, J. Cuautle-Cortés, and C.
Robledo-Sánchez, “Edge effects with the Preston equation for a circular tool and workpiece,” Appl. Opt. 43(6),
1250–1254 (2004).
15. D. W. Kim, W. H. Park, S. W. Kim, and J. H. Burge, “Parametric modeling of edge effects for polishing tool
influence functions,” Opt. Express 17(7), 5656–5665 (2009).

Depositing User: Hongyu Li
Date Deposited: 10 Nov 2016 14:04
Last Modified: 10 Nov 2016 14:04


Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©