Laboratory of Science and Technology on Integrated Logistics Support, College of Artificial Intelligence, National University of Defense Technology, Changsha, China.
PLoS One. 2020 Dec 15;15(12):e0242918. doi: 10.1371/journal.pone.0242918. eCollection 2020.
Various items of roll molds are popularly used to fabricate different kinds of optical films for optoelectronic information and other new and high-tech fields, while the fabrication and evaluation of optical microstructures on a cylindrical roller surface is more difficult than ecumenically manufactured products. In this study, the machinability of microstructures on the roll based on a fast tool servo (FTS) system is investigated. First, the flexible hinge holder for a FTS is designed and its structural parameters are optimized with finite-element analysis and fatigue reliability theory. The tool radius compensation algorithm for complicated microstructures is then deduced based on the surface fitting and bilinear interpolation algorithm of discrete data. Meanwhile, the evaluation index and method are proposed by the medium section method. Finally, a machining test of aspheric arrays on a cylindrical aluminum surface is carried out, and the high quality of the microstructure indicates that the proposed method is able to be used to fabricate optical microstructures.
各种滚模广泛用于制造各种用于光电信息和其他高新技术领域的光学薄膜，而在圆柱形滚子表面上制造和评估光学微结构比通用制造产品更困难。本研究基于快速工具伺服（FTS）系统研究了滚模上微结构的可加工性。首先，设计了用于 FTS 的柔性铰链支座，并使用有限元分析和疲劳可靠性理论对其结构参数进行了优化。然后，基于离散数据的曲面拟合和双线性插值算法推导出复杂微结构的刀具半径补偿算法。同时，采用中截面法提出了评价指标和方法。最后，在圆柱形铝表面上进行了非球面阵列的加工试验，微结构的高质量表明所提出的方法能够用于制造光学微结构。
