氧化锆陶瓷纵扭超声磨削运动特性与试验分析

Taking Zirconia ceramics as the research object, a mathematical models of single abrasive particle trajectory is established based on the principle of longitudinal torsion ultrasonic vector decomposition. With the MATLAB simulation software, the conventional grinding and longitudinal torsional ultrasonic grinding are analyzed and the influence of process parameters on the trajectory of longitudinal torsional ultrasonic grinding is discussed. Experiments of conventional grinding and longitudinal torsional ultrasonic grinding on zirconia ceramics are performed to analyze the trajectories of conventional and longitudinal torsional ultrasonic grinding, and the effect of processing parameters on the surface morphology are disclosed. The simulation results of motion trajectory of conventional grinding and longitudinal torsional ultrasonic grinding are consistent with the experimental results, which verifies the correctness of the mathematical model of the trajectory. Moreover, the machined surface morphology with uniform wear marks and slight grooves produced by longitudinal torsional ultrasonic grinding is obviously improved compared with the conventional grinding.