In order to explore the optimal kinetic parameters of magnetic abrasives in magnetic particle grinding,the finite element software ANSYS Maxwell combined with the discrete element software EDEM were used to dynamically simulate the magnetic particle grinding process.Firstly,the micro-scopic parameters were calibrated,and the parameters required for the discrete element simulation of magnetic abrasive grains were obtained.Finally,the optimal parameter combination of sliding friction coefficient of 0.9 and rolling friction coefficient of 0.109 was determined.Based on this parameter,the magnetic particle grinding process was dynamically simulated.It was concluded that under other conditions,the higher the magnetic field speed,the higher the number of actions between the magnetic abrasive grain and the surface of the pipe in unit time,and the higher the processing efficiency.Through the processing experiment,the surface roughness data under different processing parameters were obtained.The simulation results were consistent with the change trend of the experimental results,which verified the feasibility of theoretical analysis of magnetic particle grinding processing by means of numerical analysis.
关键词
磁粒研磨/离散元法/磨粒动力学/参数标定
Key words
magnetic particle grinding/discrete element method/abrasive dynamics/parameter calibration
维普
万方数据