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FEM simulation of the material removal in pad polishing

机译：抛光垫去除材料的有限元模拟

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Polishing as a step of the manufacturing process is not only used in the finishing of optical elements made out of glass. An increasing number of applications needs shiny or glossy surfaces. For these parts, the specified roughness has to be achieved by a final polishing step while keeping or improving the final shape. The goal of the presented research is to predict the material removal that occurs during the polishing process by a simulation based on finite element modelling (FEM). The presented finite element simulation model for PMMA is based on the material parameters for workpiece and polishing tool. Compared to previous research on aspherical elements made out of glass [1], the model allows the description of the process based on material parameters get out the data sheets. The data derived from the finite element modelling is compared with the polishing results on plastic materials (PMMA). Results of the polishing tests compared with the simulated values will be reported.
机译：作为制造过程的一个步骤，抛光不仅用于玻璃制成的光学元件的精加工中。越来越多的应用程序需要有光泽或有光泽的表面。对于这些零件，必须通过最后的抛光步骤达到规定的粗糙度，同时保持或改善最终的形状。本研究的目的是通过基于有限元建模（FEM）的模拟来预测抛光过程中发生的材料去除。所提出的PMMA有限元仿真模型基于工件和抛光工具的材料参数。与先前对玻璃制成的非球面元素的研究相比[1]，该模型允许根据材料参数对过程进行描述，并从数据表中获取信息。将来自有限元建模的数据与在塑料材料（PMMA）上的抛光结果进行比较。将报告抛光测试的结果与模拟值的比较。

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