Prediction and verification analysis of grinding force in the single grain grinding process of fused silica glass
Prediction and verification analysis of grinding force in the single grain grinding process of fused silica glass
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DOI：
10.1007/s00170-018-1643-4
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发表时间：
2018-04-01
影响因子：
3.4
通讯作者：
Cao, Zhongchen
中科院分区：
文献类型：
--
作者：
Su, Yunhua;Lin, Bin;Cao, Zhongchen
表面磨削是生产硅玻璃的一种有效方法。光学玻璃在延性状态下的磨削机理研究已经比较成熟，但脆性去除过程中磨削力的变化规律尚不清楚。在断裂力学模型的基础上，建立了磨削力的理论模型，以预测加工参数对磨削力的影响。采用有限元分析方法模拟了单粒磨削过程中磨削力和主应力的变化趋势。对单粒磨削过程中磨削力的实验结果与理论模型进行了比较。有限元模拟和实验结果的变化趋势与理论模型吻合较好。另一方面，对表面形貌的观察也证实了这一点。该模型可用于预测磨削力大小和优化加工参数。
Surface grinding is an effective method in the manufacturing process of silica glass. Study of grinding mechanism of optical glass in the ductile regime has been relatively mature, but the variation law of grinding force during brittle removal is still unclear. In this paper, a theoretical model of grinding force is presented based on fracture mechanics model to predict the influence of machining parameters on grinding force. Finite element analysis (FEA) is utilized to simulate the variation trend of grinding force and principal stress in single grain grinding. The experimental results of grinding force in the processing of single grain grinding are compared with theoretical model. The variation tendency of the FEA simulation and experimental results is in good agreement with the theoretical model. The observation of the surface topography also confirms it on the other hand. This model is reliable to predict the grinding force size and optimize the machining parameters.