FEM Based Modeling of Cylindrical Grinding Process Incorporating Wheel Topography Measurement
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- 作者：Ali Zahedi ; ali.zahedi@hs-furtwangen.de" class="auth_mail" title="E-mail the corresponding author ; Bahman Azarhoushang
- 关键词：single-grain scratch ; finite element method ; cylindrical grinding ; cBN grinding wheel ; wheel topography ; Gamma distribution
- 刊名：Procedia CIRP
- 出版年：2016
- 出版时间：2016
- 年：2016
- 卷：46
- 期：Complete
- 页码：201-204
- 全文大小：504 K
文摘
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.