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数控抛光中边缘控制方法的研究

Research on edge-control methods in CNC polishing.

作者信息

Yu Guoyu, Walker David, Li Hongyu, Zheng Xiao, Beaucamp Anthony

机构信息

1National Facility for Ultra Precision Surfaces, OpTIC Centre, University of Huddersfield, St. Asaph Business Park, Ffordd William Morgan, North Wales, St Asaph, LL17 0JD UK.

Department of Physics and Astronomy, University College, Gower St, London, WC1E 6BT UK.

出版信息

J Eur Opt Soc Rapid Publ. 2017;13(1):24. doi: 10.1186/s41476-017-0053-9. Epub 2017 Sep 16.

DOI:10.1186/s41476-017-0053-9
PMID:32010433
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6961492/
Abstract

BACKGROUND

We have developed edge-control for the Precessions TM process suitable for fast fabrication of large mirror segments, and other applications sensitive to edge mis-figure. This has been applied to processing of European extremely large telescope (E-ELT) prototype mirror-segments, meeting the specification on maximum edge mis-figure. However we have observed residuals that have proved impossible to correct with this approach, being in part the legacy of asymmetries in the input edge-profiles.

METHODS

We have therefore compared different proposed methods experimentally and theoretically and report here on a new edge-rectification step, which operates locally on edges, does not disturb the completed bulk area.

RESULTS

A new toolpath has been developed and experiments have been carried out to demonstrate that local edge rectification can be carried out.

CONCLUSIONS

With this method, the residue error on edges can be removed separately and has potential to reduce total process time.

摘要

背景

我们已为进动加工工艺开发了边缘控制技术，该工艺适用于大型镜面分段的快速制造以及对边缘形状误差敏感的其他应用。此技术已应用于欧洲极大望远镜（E-ELT）原型镜段的加工，满足了最大边缘形状误差的规范要求。然而，我们观察到一些残余误差，事实证明用这种方法无法校正，部分原因是输入边缘轮廓中的不对称性遗留问题。

方法

因此，我们通过实验和理论比较了不同的提议方法，并在此报告一种新的边缘校正步骤，该步骤在边缘上局部操作，不会干扰已完成的主体区域。

结果

已开发出一种新的刀具路径，并进行了实验以证明可以进行局部边缘校正。

结论

使用这种方法，可以单独消除边缘上的残余误差，并且有可能减少总加工时间。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/dc3c7bb0bf84/41476_2017_53_Fig18_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/dc3c7bb0bf84/41476_2017_53_Fig18_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/335738cbb7fa/41476_2017_53_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/477b600c7ec9/41476_2017_53_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/fecf096b5649/41476_2017_53_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/154d1e1d4a86/41476_2017_53_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/207deba87ae4/41476_2017_53_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/0eeb2606c954/41476_2017_53_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/aad841b6c0e6/41476_2017_53_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/284e6e3f61a7/41476_2017_53_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/5b51df0b9ea1/41476_2017_53_Fig15_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/c560526cdbf9/41476_2017_53_Fig16_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/44e7/6961492/dc3c7bb0bf84/41476_2017_53_Fig18_HTML.jpg

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本文引用的文献

1
Edge control in CNC polishing, paper 2: simulation and validation of tool influence functions on edges.
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Opt Express. 2012 Aug 27;20(18):19787-98. doi: 10.1364/OE.20.019787.
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Research on reducing the edge effect in magnetorheological finishing.
Appl Opt. 2011 Mar 20;50(9):1220-6. doi: 10.1364/AO.50.001220.
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Measurement of influence function using swing arm profilometer and laser tracker.使用摆臂轮廓仪和激光跟踪仪测量影响函数。
Opt Express. 2010 Mar 1;18(5):5271-81. doi: 10.1364/OE.18.005271.
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Parametric modeling of edge effects for polishing tool influence functions.
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