Modeling and simulation of high-speed cylindrical grinding based on 3D grinding wheel topography

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Chen, H.P.^1 ; Cao, H.Y.^1 ; Wu, R.L.^1 ; Lu, C.^1

State Key Lab of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan

430074, China^1

关键词: Cylindrical grinding;    Difficult to machine materials;    Grinding force ratio;    Grinding performance;    Grinding wheel topography;    Model and simulation;    Thermomechanical coupling effects;    Workpiece temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012067/pdf
DOI  :  10.1088/1757-899X/592/1/012067

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The purpose of this paper is to establish a 3D virtual grinding wheel to illustrate the high-speed cylindrical grinding process of difficult-to-machine materials under various process parameters. Based on Monte Carlo method, the abrasive grain is modeled cutting spherical solid with random planes, and the random distribution of grains is obtained based on the virtual grid method. Then the grinding wheel topography is trimmed to adjust the protrusion height of abrasive grains. The simulations of high-speed cylindrical grinding under different grinding conditions are carried out considering the thermomechanical coupling effect of grinding wheel and workpiece. The 3D grinding wheel is validated by analyzing the grinding force ratio. The effects of cutting depth on the grinding performance, such as grinding force, workpiece temperature, effective stress and surface quality, are discussed. The results show that a smaller depth of grinding is beneficial for better surface quality.