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首页> 外文会议>Asia Pacific Conference on Optics Manufacture; 20070111-13; Hongkong(CN) >A Framework of a Surface Generation Model in the Fast Tool Servo (FTS) Machining of Optical Microstructures
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A Framework of a Surface Generation Model in the Fast Tool Servo (FTS) Machining of Optical Microstructures

机译：光学微结构快速工具伺服（FTS）加工中的表面生成模型框架

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摘要

In this paper, a framework of surface generation model in the fast tool servo (FTS) machining of optical microstructures will be described. The integrated model is totally composed of a tool path generator (TPG), a surface topography model (STM) and an optimization model (OM). To develop the tool path generator, two parts should be involved. The first part is the tool path generated based on cutting conditions such as the feed rate and spindle speed, the geometry of optical microstructures, and diamond tool geometry. Another part is the synchronized motion generated by the tool actuation of the FTS at a bandwidth higher than the rotational frequency of the spindle. The surface topography model will be generated based on the TPG and used to predict the technological aspects of FTS machining. It takes into the account the kinematic and dynamic characteristics of the cutting process. The former includes the tool path generated by the tool path generator. The later includes the relative vibration between the tool and the workpiece caused by the axial error motion of the spindle as well as the synchronized motion of the FTS system. The optimization model will be undertaken by an iterative algorithm, which will be developed based on the TPG and STM. The OM will be expected to output the verified tool path, the suggested optimum cutting conditions, and the diagrams with predicted cutting performance characteristic and process parameters being investigated. Eventually, the successful development of this surface generation model can contribute for the knowledge of ultra-precision machining with FTS and the further development of the performance of the machining system.
机译：在本文中，将描述光学微结构的快速工具伺服（FTS）加工中的表面生成模型的框架。集成模型完全由刀具路径生成器（TPG），表面形貌模型（STM）和优化模型（OM）组成。要开发刀具路径生成器，应包括两个部分。第一部分是根据切削条件（例如进给速度和主轴速度，光学微结构的几何形状以及金刚石工具的几何形状）生成的刀具路径。另一部分是由FTS的工具致动所产生的同步运动，其带宽高于主轴的旋转频率。表面形貌模型将基于TPG生成，并用于预测FTS加工的技术方面。它考虑了切割过程的运动学和动态特性。前者包括由刀具路径生成器生成的刀具路径。后者包括由主轴的轴向误差运动以及FTS系统的同步运动引起的刀具和工件之间的相对振动。优化模型将通过迭代算法进行，该算法将基于TPG和STM进行开发。预计OM将输出经过验证的刀具路径，建议的最佳切削条件以及正在研究带有预测切削性能特征和工艺参数的图表。最终，这种表面生成模型的成功开发可以为使用FTS进行超精密加工的知识以及加工系统性能的进一步发展做出贡献。

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