| 红外线聚光非球面透镜的单点金刚石镜面切削方法 |
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| 引用本文： | 谢晋,耿安兵,熊长新,吴新建.红外线聚光非球面透镜的单点金刚石镜面切削方法[J].光学精密工程,2004,12(6):566-569. |
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| 作者姓名： | 谢晋 耿安兵 熊长新 吴新建 |
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| 作者单位： | 华南理工大学,机械工程学院,广东,广州,510640;华中光电技术研究所,湖北,武汉,430074 |
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| 基金项目： | 国防科工委十五计划预研项目，留学回国人员科研启动基金资助项目。 |
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| 摘 要： | 根据硬脆性材料的延性域加工机理和面形误差补偿加工方法,研究了圆弧形和平头形刀具的单点金刚石延性域切削方法,在加工中直接获得了镜面切除面;并利用数控技术进行误差补偿,克服了因加工试验、刀具磨损、机械振动、热变形等造成的加工误差导致的非球面的面形精度降低和表面粗糙度恶化.并将该方法用于采用圆弧形刀具对红外线聚光的φ70mm非球面锗透镜进行单点金刚石切削实验中.试验结果表明面形误差补偿加工方法可以进一步消除加工误差,将非球面的面形精度PV值从微米级(1.23μm)提高到亚微米级(0.36μm)的程度,表面粗糙度Ra从亚微米级(0.27μm)改善到超亚微米级(0.04μm)的范围.
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| 关 键 词： | 非球面 硬脆性材料 面形精度 误差补偿 |
| 文章编号： | 1004-924X(2004)06-0566-04 |
| 收稿时间： | 2004/4/22 |
| 修稿时间： | 2004年4月22日 |
Single-point diamond mirror turning of infrared aspheric lens |
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| XIE Jin,Geng An-bing,XIONG Chang-xin,WU Xin-jian.Single-point diamond mirror turning of infrared aspheric lens[J].Optics and Precision Engineering,2004,12(6):566-569. |
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| Authors: | XIE Jin Geng An-bing XIONG Chang-xin WU Xin-jian |
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| Affiliation: | XIE Jin~1,Geng An-bing~2,XIONG Chang-xin~2,WU Xin-jian~2 |
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| Abstract: | According to the ductile-mode machining principle of hard-brittle material and error compensation turning method, the ductile-mode turning method of aspheric surface of infrared lens is mainly discussed, which is concerning arc diamond tool and straight diamond tool, in order to directly obtain mirror cutting surface. The error compensation turning method is introduced to eliminate the influence of tool wear, machine librations and thermal distortion, etc. on the surface roughness and form accuracy. An experiment for a single-point diamond turning of germanium lens of φ70 mm was carried out by the use of error compensation turning method. The result shows that it may improve aspheric form accuracy PV from 1.23 mm to 0.36 mm, and surface roughness Ra from 0.27 mm to 0.04 mm. |
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| Keywords: | aspheric surface hard-brittle material form accuracy error compensation |
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