超声振动辅助微磨削工艺参数对表面形貌及粗糙度的影响研究

2020-11-18

作者：赵小天，周云光，董彪，陈砚单位：东北大学秦皇岛分校

摘要：为探究超声振动辅助微磨削的工艺参数对表面形貌和粗糙度的影响，基于微磨棒表面磨粒突出高度的正态分布模型，对磨棒表面形貌进行仿真，并结合磨削动力学，构建了超声振动辅助微尺度磨削磨粒与工件的运动学模型；利用MATLAB软件对超声振动辅助微磨削加工表面进行仿真分析，获得了不同加工参数下的超声振动辅助微磨削三维形貌和表面粗糙度；分析了磨削工艺参数和超声振动参数对加工表面形貌和表面粗糙度的影响规律。研究成果对超声振动辅助微磨削加工参数的选择具有一定的借鉴意义。

关键词：微磨削；MATLAB；超声振动；表面粗糙度；形貌仿真

中图分类号：TG580.6；TH161文献标志码：ADOI：10.3969/j.issn.1000-7008.2020.11.024

Influence study of Technological Parameters of Ultrasonic Vibration Assisted

Microgrinding on Surface Topography and Roughness

Zhao Xiaotian，Zhou Yunguang，Dong Biao，Chen Yan

Abstract:In order to explore the influence of technological parameters of ultrasonic vibration assisted microgrinding on surface topography and roughness，the surface topography of the grinding rod is simulated based on the normal distribution of the protruding height of abrasive particles in the surface of microgrinding rod，and the kinematics model of abrasive particles and workpiece under ultrasonic vibration assisted microgrinding is constructed based on the grinding dynamics.Then，the machining surface of ultrasonic vibration assisted microgrinding is simulated and analyzed by MATLAB，and the threedimensional topography and surface roughness of ultrasonic vibration assisted microgrinding under different machining parameters are obtained.The influence of grinding parameters and ultrasonic vibration parameters on the surface topography and surface roughness is analyzed，and the research outcomes can be used for reference in the selection of machining parameters of ultrasonic vibration assisted microgrinding.

Keywords:microgrinding；MATLAB；ultrasonic vibration；surface roughness；topography simulation