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Experimental investigation of mid-spatial frequency surface textures on fused silica after computer numerical control bonnet polishing

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Abstract

Automated bonnet polishing is achieved using computer numerical control (CNC) technology. However, owing to specific toolpaths, CNC bonnet polishing is generally accompanied by the mid-spatial frequency (MSF) of surface textures on polished surfaces that could produce surface ripples or waviness and degrade image quality. In this study, the MSF surface textures on fused silica are investigated by developing a CNC bonnet polishing technique using a cerium oxide-filled polyurethane pad (LP66)—a cellular polyurethane material designed to handle high flatness and surface finishing requirements for optical glass materials. To minimize the MSF, optimal combinations of various polishing parameters, including tool offset, head speed, track spacing, and surface feed rate, are studied. Experimental results demonstrate that the head speed and feed rate significantly affect the surface texture during bonnet polishing. Although the tool offset does not cause surface textures, the material removal rate is affected. A series of optimization experiments is conducted, consequently leading to the effective removal of irregular surface ripples and a reduction of MSF errors. By optimizing the polishing parameters, extremely accurate surface quality is achieved, along with a root mean square error of 1.6 nm. These results demonstrate the potential applications of LP66 in CNC bonnet polishing for highly accurate freeform optical components.

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References

  1. Yakubov VP, Kamenev AV, Ponomarev SV (2017) Spherical lens-reflector for aerospace communication. Progress in Electromagnetics Research Symposium—(PIERS), St. Petersburg, Russia (May 22–25, 2017), No. 17521109. https://doi.org/10.1109/PIERS.2017.8262439]

  2. Blackmore-Wright S, Eperjesi F (2012) Blue-light filtering intraocular lenses. Eur Ophthalmic Rev 6:104–107. https://doi.org/10.17925/EOR.2012.06.02.104

    Article  Google Scholar 

  3. Cheung CF, Li HF, Lee WB, To S, Kong LB (2007) An integrated form characterization method for measuring ultra-precision free form surfaces. Int J Mach Tool Manu 47:81–91. https://doi.org/10.1016/j.ijmachtools.2006.02.013

    Article  Google Scholar 

  4. Cheung CF, Kong LB, Ren M, Whitehouse D, To S (2012) Generalized form characterization of ultra-precision freeform surfaces. CIRP Annals–Manu Tech 61:527–530. https://doi.org/10.1016/j.cirp.2012.03.015

    Article  Google Scholar 

  5. Cao ZC, Cheung CF (2014) Theoretical modelling and analysis of the material removal characteristics in fluid jet polishing. Int J Mech Sci 89:158–166. https://doi.org/10.1016/j.ijmecsci.2014.09.008

    Article  Google Scholar 

  6. Walker DD, Beaucamp ATH, Doubrovski V, Dunn C, Evans R, Freeman R, Kelchner J, McCavana G, Morton R, Riley D, Simms J, Yu G, Wei X (2006) Automated optical fabrication: first results from the new “precessions” 1.2 m CNC polishing machine. Proc SPIE 6273, Optomechanical Technologies for Astronomy, No. 627309. https://doi.org/10.1117/12.671098

  7. Beaucamp A, Namba Y (2013) Super-smooth finishing of diamond turned hard X-ray molding dies by combined fluid jet and bonnet polishing. CIRP Annals–Manu Tech 62:315–318. https://doi.org/10.1016/j.cirp.2013.03.010

    Article  Google Scholar 

  8. Hoyo JD, Kim DW, Burge JH (2013) Super-smooth optical fabrication controlling high spatial frequency surface irregularity. Proc SPIE 8838, Optical Manufacturing and Testing X, No. 88380 T. https://doi.org/10.1117/12.2022924

  9. Wang CJ, Cheung CF, Ho LT, Liu MY, Lee WB (2017) A novel multi-jet polishing process and tool for high-efficiency polishing. Int J Mach Tool Manu 115:60–73. https://doi.org/10.1016/j.ijmachtools.2016.12.006

    Article  Google Scholar 

  10. Wang C, Yang W, Wang Z, Yang X, Sun Z, Zhong B, Pan R, Yang P, Guo Y, Xu Q (2014) Highly efficient deterministic polishing using a semirigid bonnet. Opt Eng 53:1–9. https://doi.org/10.1117/1.OE.53.9.095102

    Article  Google Scholar 

  11. Belkhir N, Aliouane T, Bouzid D (2014) Correlation between contact surface and friction during the optical glass polishing. Appl Surf Sci 288:208–214. https://doi.org/10.1016/j.apsusc.2013.10.008

  12. Guo J, Beaucamp A, Ibaraki S (2017) Virtual pivot alignment method and its influence to profile error in bonnet polishing. Int J Mach Tool Manu 122:18–31. https://doi.org/10.1016/j.ijmachtools.2017.06.001

    Article  Google Scholar 

  13. Cao Z, Cheung CF, Zhao X (2016) A theoretical and experimental investigation of material removal characteristics and surface generation in bonnet polishing. Wear 360–361:137–146. https://doi.org/10.1016/j.wear.2016.03.025

    Article  Google Scholar 

  14. Pan R, Zhong B, Chen D, Wang Z, Fan J, Zhang C, Wei S (2018) Modification of tool influence function of bonnet polishing based on interfacial friction coefficient. Int J Mach Tool Manu 124:43–52. https://doi.org/10.1016/j.ijmachtools.2017.09.003

    Article  Google Scholar 

  15. Zeng S, Blunt L (2014) Experimental investigation and analytical modelling of the effects of process parameters on material removal rate for bonnet polishing of cobalt chrome alloy. Precis Eng 38:348–355. https://doi.org/10.1016/j.precisioneng.2013.11.005

    Article  Google Scholar 

  16. Preston FW (1927) The theory and design of plate glass polishing machines. J Glass Tech.11. https://doi.org/10.1299/kikaic.75.2581

  17. Cao ZC, Cheung CF (2016) Multi-scale modeling and simulation of material removal characteristics in computer-controller bonnet polishing. Int J Mech Sci 106:147–156

    Article  Google Scholar 

  18. Walker DD, Brooks D, King A, Freeman R, Morton R, McCavana G, Kim SW (2003) The “precessions” tooling for polishing and figuring flat, spherical and aspheric surfaces. Opt Express, 11:958–964. https://doi.org/10.1364/OE.11.000958

  19. Yang MY, Lee HC (2001) Local material removal mechanism considering curvature effect in the polishing process of the small aspherical lens die. J Mater Process Technol 116:298–304. https://doi.org/10.1016/S0924-0136(01)01055-X

    Article  Google Scholar 

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Acknowledgments

We appreciate the invaluable expert comments and advice on the manuscript received from Ching-Hsiang Kuo, Zong-Ru Yu, Cheng-Fang Ho, and Hong-Tsu Young.

Funding

The authors declare that there are no financial interests or other potential conflicts of interest involved in the preparation and publication of this manuscript. This study was financially supported by the Ministry of Science and Technology of Taiwan project through technical cooperation and shared technical experience relevant to polishing technology between National Taiwan University and Taiwan Instrument Research Institute, National Applied Research Laboratories.

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Authors and Affiliations

  1. Mechanical Engineering Department, National Taiwan University, Taipei, 106, Taiwan

    Wei-Ren Huang, Tsung-Yueh Tsai & Hong-Tsu Young

  2. Laser and Inspection R&D Division, Contrel Technology Co., Ltd., Tainan, Taiwan

    Yi-Jyun Lin

  3. Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, 300, Taiwan

    Ching-Hsiang Kuo, Zong-Ru Yu & Cheng-Fang Ho

  4. Laser Business Group, Contrel Technology Co., Ltd., Tainan, 744, Taiwan

    Wei-Yao Hsu

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  1. Wei-Ren Huang
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  2. Tsung-Yueh Tsai
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Correspondence to Wei-Ren Huang.

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Huang, WR., Tsai, TY., Lin, YJ. et al. Experimental investigation of mid-spatial frequency surface textures on fused silica after computer numerical control bonnet polishing. Int J Adv Manuf Technol 108, 1367–1380 (2020). https://doi.org/10.1007/s00170-020-05388-6

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  • DOI: https://doi.org/10.1007/s00170-020-05388-6

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