FEM Based Modeling of Cylindrical Grinding Process Incorporating Wheel Topography Measurement
FEM Based Modeling of Cylindrical Grinding Process Incorporating Wheel Topography Measurement
复制标题
基于有限元的外圆磨削过程建模，结合砂轮形貌测量
DOI：
10.1016/j.procir.2016.03.179
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
B. Azarhoushang
中科院分区：
文献类型：
--
作者：
Ali Zahedi;B. Azarhoushang
在这项研究中，cBN切削颗粒与100Cr6轴承钢工件的相互作用是用有限元法（FEM）模拟。磨削条件与高温和应变速率有关。因此，使用本构材料模型，该模型考虑了温度和应变率对流动应力的耦合效应。此外，作为磨削分析中的主要挑战之一，根据其实际共焦图像对砂轮的形貌进行建模。从共焦显微镜数据中提取概率密度函数的参数，并相应地定义切割颗粒的分布。通过瞬态运动学方法，将单磨粒模型推广到100Cr6轴承钢外圆磨削过程中磨粒在砂轮表面的聚集作用。仿真结果与实验数据进行了验证。
In this research, the interaction of cBN cutting grains with a 100Cr6 bearing steel workpiece is simulated using Finite Element Method (FEM). Grinding conditions are associated with high temperatures and strain-rates. Therefore, a constitutive material model is used which accounts for the coupled temperature and strain-rate effects on the flow stress. Furthermore, as one of the main challenges in grinding analysis, the topography of the grinding wheel is modelled according to its actual confocal images. The parameters of a probability density function are extracted from the confocal microscopy data and the distribution of the cutting grains are accordingly defined. Through a transient kinematical approach, the single-grain model is extended to the aggregate action of cutting grains on the wheel surface in cylindrical grinding process of a 100Cr6 bearing steel. The simulation results are validated with experimental data.
影响因子：
4.1
作者：
Brinksmeier, E.;Aurich, J. C.;Wittmann, M.
通讯作者：
Wittmann, M.