Study on the Wear Characteristics of a Lapping Wheel in Double-Sided Lapping Based on the Trajectory Distribution
Study on the Wear Characteristics of a Lapping Wheel in Double-Sided Lapping Based on the Trajectory Distribution
复制标题
基于轨迹分布的双面研磨研磨轮磨损特性研究
DOI：
10.1109/tsm.2019.2912454
复制
发表时间：
2019-08-01
影响因子：
2.7
通讯作者：
Chen, Mingxin
中科院分区：
文献类型：
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作者：
Lai, Zhiyuan;Hu, Zhongwei;Chen, Mingxin
在双面研磨过程中，由于磨耗不均匀，研磨轮表面形状发生变化，影响工件质量，特别是工件表面形状精度（弓、经、总厚度方差）。研磨轨迹是造成车轮表面磨损不均匀的主要原因。因此，本文将基于轨迹分布研究双面研磨过程中研磨轮磨损的均匀性。首先，分析了双面研磨的运动学，建立了研磨轨迹方程。然后，利用MATLAB软件进行仿真计算，得到车轮表面的轨迹分布特性。根据轨迹分布密度分析了车轮表面的磨损均匀性。建立了研磨轮表面的磨损模型。最后，对蓝宝石薄片进行了双面研磨实验。在不同工件材料去除厚度下，测量了研磨轮表面轮廓的变化，得到了研磨轮表面沿径向的磨损量，并与计算结果进行了比较。计算结果与试验结果基本一致，证明了双面研磨轮表面磨损模型的正确性。
In the process of double-sided lapping, the surface shape of the lapping wheel changes because of uneven wear, which affects the quality of the workpiece, especially the surface shape accuracy of the workpiece (bow, warp, and total thickness variance). Lapping trajectory is the primary reason for uneven wear on the wheel surface. Therefore, the uniformity of the lapping wheel wear during the double-sided lapping process will be investigated based on the trajectory distribution in this paper. First, the kinematics of double-sided lapping is analyzed, and the lapping trajectory equation is established. Then, the simulation calculation is conducted using MATLAB software to obtain the trajectory distribution characteristics of the wheel surface. The wear uniformity of the wheel surface is analyzed according to the distribution density of the trajectory. The wear model of the lapping wheel surface is established. Finally, double-sided lapping experiments with sapphire slices are carried out. Under varied workpiece material removal thicknesses, the changes of the lapping wheel surface profile are measured, and the wear of the lapping wheel surface along the radial direction is obtained and compared with the calculation results. The calculation results are basically consistent with the experimental results, which proves the correctness of the double-sided lapping wheel surface wear model.