金字塔型砂带磨粒排布对表面磨抛形貌的影响

Effect of abrasive particle arrangement on surface morphology ground with

为研究金字塔型砂带磨粒排布对磨抛加工工件表面形貌的影响,建立金字塔型砂带磨抛加工的数学模型及解析算法,采用Abaqus软件进行粗糙度值的模拟仿真预测,通过机器人磨抛系统平台进行金字塔型砂带磨抛实验并检测加工后工件的表面形貌,与仿真预测值进行对比。结果表明:粗糙度仿真预测值与实际测量值变化趋势相同,吻合度良好,误差在0.03μm以内,最大误差率为16.6%。仿真模型与实验过程保持一致,可以用于预测金字塔型砂带磨抛加工的表面粗糙度。

To study the influence of grain arrangement on the surface profile of the workpiece,a mathematical model and its corresponding analytical algorithm of pyramidal abrasive belt grinding were established.The roughness value was simulated and predicted with Abaqus software.Grinding tests were carried out on the robot grinding system plat-form with pyramidal abrasive belt,and the surface profile were inspected and then compared with the simulation.The results show that the simulated roughness and the measured values have similar variation trend with good consistency,where the error is within 0.03μm and the maximum error rate is 16.6%.The theoretical simulation and test results re-main consistent,indicating that the model could be used to predict the surface roughness of workpiece ground with pyr-amidal abrasive belt.