旋转超声铣削表面微结构成形机理仿真与试验研究  

Theoretical simulation and experimental study on surface microstructure generation in rotary ultrasonic milling

作　　者：马鹏辉 郑侃[1] 孙连军 薛枫 孙振文 Ma Penghui;Zheng Kan;Sun Lianjun;Xue Feng;Sun Zhenwen(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《南京理工大学学报》2023年第1期16-23,共8页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(51861145405)。

摘　　要：考虑到旋转超声铣削(Rotary ultrasonic milling,RUM)形成的规律性表面微结构在航空航天领域具有广泛的应用前景,开展了旋转超声铣削表面微结构仿真研究。首先建立旋转超声铣削刀尖运动学方程。其次,基于改进型Z-MAP法,利用MATLAB软件进行表面微结构仿真分析,阐明了工艺参数以及主轴误差参数对表面微结构的影响规律。最后,开展旋转超声铣削试验,结果表明仿真模型能准确预测进给方向间距、周向间距等表面微结构特征,验证了仿真的有效性和合理性。Considering the surface microstructure fabricated by rotary ultrasonic milling(RUM)has a wide range of application prospects in the field of aerospace,a simulation analysis on the surface microstructure in RUM is performed.Firstly,the kinematic equations of RUM tool tip are established.Secondly,based on the improved Z-MAP principle,the surface microstructure simulation is presented by MATLAB software.Meanwhile,the effects of ultrasonic milling parameters and runout error on the surface microstructure are clarified.Finally,RUM experiment is carried out to validate this simulation model.The results show that simulated results have high degree of conformity with milled surface microstructure characteristics such as the feed direction distance and the circumferential distance,which verifies the validity and rationality of the simulation model.

关 键 词：微结构 仿真建模 跳动误差 旋转超声铣削 端面铣削 表面预测 

分 类 号：TG663[金属学及工艺—金属切削加工及机床]