超声磨削表面三维形貌建模与试验研究

3D Surface Topography Modeling and Research for Ultrasonic Grinding

为了研究超声磨削的工件三维形貌,建立了砂轮表面三维形貌,通过对超声磨削磨粒运动轨迹分析,建立了磨粒在工件表面的切削过程模型。提出了大量随机分布磨粒切削工件路径的离散算法和最小高度值包络曲面提取算法,实现了超声磨削表面三维形貌的建立。进行超声磨削试验,结果表明:该模型能有效预测超声磨削的表面形貌,为超声磨削的工艺优化提供了理论依据。

In order to research the 3 d topography of ultrasonic grinding workpiece,3 d topography of grinding wheel surface is established. Through analyzing ultrasonic grinding grain trajectory,model of grinding grain workpiece surface cutting process was established. Put forward the path of a large number of random distribution of abrasive cutting workpiece discrete algorithm and minimum height value envelope surface extraction algorithm,implements the establishment of ultrasonic grinding 3 d surface topography.,Results of ultrasonic vibration experiment show that the model can effectively predict the surface morphology of ultrasonic grinding,and provides theory basis for ultrasonic grinding process optimization.