不同粗糙度下磨削表面形貌特征与仿真研究  

Characteristics and Simulation of Grinding Surface Morphology under Different Roughness

作　　者：梁瑞[1] 成栋才 姜峰[1] LIANG Rui;CHENG Dongcai;JIANG Feng(College of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《机械制造与自动化》2022年第5期110-113,共4页Machine Building & Automation

基　　金：国家自然科学基金项目(51275225);甘肃省自然科学基金项目(B061709)。

摘　　要：基于分形理论对双变量W-M函数进行研究,结合分形维数与Ra之间的关系分析不同表面粗糙度下磨削表面轮廓高度的变化范围。对磨削表面轮廓高度分布规律进行实验数据和W-M函数分析结果表明:磨削表面轮廓高度呈高斯分布;随着Ra的增大,表面轮廓微凸体重叠数目呈递减趋势,而标准差呈递增趋势,其中当Ra=0.8时,轮廓高度分布近似呈标准正态分布。Based on fractal theory, the bivariate W-M function is studied, and the variation range of grinding surface profile height under different roughness is analyzed by combining the relationship between fractal dimension and Ra. The experimental data and W-M function analysis is carried out on the distribution law of grinding surface profile height. The results show that the height of grinding surface profile presents Gaussian distribution, with which as Ra increases, the overlapping number of surface profile asperities decrease, while the standard deviation tends to increase, and the profile height distribution displays an approximate standard normal distribution when Ra=0.8.

关 键 词：表面形貌 高斯分布 分形维数 表面粗糙度 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]