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利用ANSYS有限元模拟软件建立了激光铣削过程的三维瞬态有限元模型,并以Al2O3陶瓷材料的激光铣削加工为例,利用ANSYS中的“单元生死”技术对激光铣削过程中温度场的动态分布进行了模拟。选取其中的一组参数,详细分析了铣削件表面某一点温度场的变化规律,确定了沿样件不同的扫描路线上铣削层的宽度和深度,并提出了温度场模拟结果的间接验证方法,即将温度场模拟获得的铣削层宽度和深度与实验测得的数据进行对比,对比结果较吻合,说明建立的有限元模型能够进行激光铣削效果的预测。
The finite element simulation software ANSYS was used to establish the three-dimensional transient finite element model of the laser milling process. Taking the laser milling process of Al2O3 ceramic material as an example, the temperature field in the laser milling process Dynamic distribution was simulated. A set of parameters is selected to analyze the variation of the temperature field at a certain point on the surface of milling part in detail. The width and depth of the milling layer along different scanning lines are determined. An indirect verification method of temperature field simulation results is proposed. Comparing the width and the depth of the milling layer obtained from the temperature field with the experimental data, the results of the comparison are in good agreement, which shows that the finite element model can predict the laser milling effect.