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An Improved Method for Generating Cutter Points Based on Required Form Accuracy of the Machining Surface

机译：一种基于加工面所需形状精度的刀具点生成方法

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摘要

Recently, freeform surfaces are widely used in optical field. Fabrication of freeform surface optics needs high machining accuracy and high efficiency simultaneously. Using the present ultraprecision manufacturing technologies, the form accuracy of freeform surfaces can reach submicrometric or even nanometer range but at the cost of low efficiency; moreover, the form accuracy cannot be predicted; the number and the position of cutter points cannot be accurately controlled before practical machining. A novel strategy of cutter points distribution is proposed in the paper, which is based on the required accuracy of the freeform surface and the machining efficiency can be improved by eliminating redundant cutter points on the processing trajectory. The new idea is detailed, simulations are conducted, and experiments are done to verify the feasibility of the proposed method in fabricating two sinusoidal ring surfaces.
机译：近来，自由曲面在光学领域被广泛使用。自由曲面光学器件的制造需要高加工精度和高效率。使用当前的超精密制造技术，自由曲面的形状精度可以达到亚微米甚至纳米范围，但以低效率为代价。此外，无法预测格式精度；在实际加工之前，无法精确控制刀尖的数量和位置。本文提出了一种新颖的刀尖分布策略，该策略基于自由曲面的精度要求，通过消除加工轨迹上多余的刀尖可以提高加工效率。详细介绍了该新思想，进行了仿真，并进行了实验，以验证所提出的方法在制造两个正弦环形表面中的可行性。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第7期|940643.1-940643.8|共8页
  • 作者

    Ji Shijun; Yu Huijuan; Zhao Ji;

  • 作者单位

    Jilin Univ, Sch Mech Sci & Engn, Changchun 130025, Peoples R China.;

    Jilin Univ, Sch Mech Sci & Engn, Changchun 130025, Peoples R China.;

    Jilin Univ, Sch Mech Sci & Engn, Changchun 130025, Peoples R China.;

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