轴向超声振动磨削硬脆性材料表面粗糙度建模研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (23) : 194-200.

论文

何玉辉1,2，万荣桥1,2，周剑杰1,2，唐进元1,2

作者信息 +

Modeling for surface roughness of hard and brittle materials in axial ultrasonic vibration grinding

HE Yu-hui, WAN Rong-qiao, ZHOU Jian-jie，TANG Jin-yuan

Author information +

文章历史 +

摘要

假设磨粒切削沟槽轮廓截面为一系列顶角等于磨粒的锥顶角、深度服从瑞利分布的三角形，并考虑磨粒运动轨迹重叠效应的影响，建立了轴向超声振动磨削硬脆性材料的表面粗糙度模型。以K9光学玻璃为实验材料，对比分析了未考虑和考虑了磨粒运动轨迹重叠效应的表面粗糙度模型的拟合精度，结果表明：后者表征超声磨削表面粗糙度更接近实验结果，且超声磨削表面粗糙度模型反映的磨削参数和振动参数对表面粗糙度的影响趋势与实验结果相一致，从而验证了所建模型的正确性和有效性。

Abstract

Assuming the profile cross section of grain grinding grooves is a series of triangles whose vertex angle is equal to the cone angle of grinding particle and the grooves’ depth obeys Rayleigh distribution, considering the effects of grinding particles’ trajectories overlapping, the surface roughness model of hard and brittle materials in axial ultrasonic vibration grinding was established. K9 optical glass was taken as the test material, the fitting accuracies of the model without the overlapping effect of grinding particle trajectories and the one with this effect were analyzed contrastively. The results showed that the latter to characterize the surface roughness of ultrasonic grinding is more close to the test results; the effect trend of grinding parameters and vibration parameters on surface roughness reflected by the latter are consistent with the test results; so, the correctness and effectiveness of the proposed model is verified.

导出引用

何玉辉1,2，万荣桥1,2，周剑杰1,2，唐进元1,2. 轴向超声振动磨削硬脆性材料表面粗糙度建模研究[J]. 振动与冲击, 2017, 36(23): 194-200

HE Yu-hui, WAN Rong-qiao, ZHOU Jian-jie，TANG Jin-yuan. Modeling for surface roughness of hard and brittle materials in axial ultrasonic vibration grinding[J]. Journal of Vibration and Shock, 2017, 36(23): 194-200

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