微铣削表面BEMD基准面的三维粗糙度参数研究  

Research on 3D Roughness Parameter of Micro-milling Surface Based on BEMD Reference Plane

作　　者：齐云[1] 许金凯[1] 于占江[1] 于化东[1] Qi Yun;Xu Jinkai;Yu Zhanjiang;Yu Huadong

机构地区：[1]长春理工大学精密制造及检测技术国家地方联合工程实验室

出　　处：《工具技术》2018年第3期129-134,共6页Tool Engineering

基　　金：国家重点研发计划(2016YFE0112100);国家自然科学基金(51275056);长春市"双十工程"(2015022)

摘　　要：针对二维粗糙度评价微铣削表面不够合理、全面等问题,根据微铣削表面三维微观形貌结构特征,提出了一种基于二维经验模态分解算法(BEMD)的三维粗糙度参数体系。该体系采用BEMD算法获取三维粗糙度计算的评定基准面,通过数值模拟的微铣削表面选取适用于评价微铣削表面的三维粗糙度参数。研究结果表明,BEMD基准面能够作为三维粗糙度计算的基准面;与二维粗糙度相比,所选取的9个三维粗糙度参数能够更全面准确地反映微铣削表面的微观形貌特征。To compensate the deficiencies of the 2D surface roughness evaluation,a 3D roughness parameter system based on the bidimensional empirical mode decomposition（ BEMD） algorithm is used to evaluate the micro-topography of the surface. In this system,the BEMD algorithm is used to obtain the reference plane to calculate the 3D roughness. The different micro-milling surfaces are simulated,and the 3D roughness parameters which are suitable for evaluating the micromilling surface are selected. The results show that the BEMD reference plane can be used as the base of 3D roughness calculation. Compared with the two-dimensional roughness,the nine selected 3D roughness parameters can reflect the micro-topography characteristics of micro-milling surface more comprehensively and accurately.

关 键 词：BEMD 三维粗糙度 微铣削 

分 类 号：TG84[金属学及工艺—公差测量技术] TH161.14[机械工程—机械制造及自动化]