高速铣削再生颤振稳定性预测与验证  

Stability Prediction of Regenerative Chatter for High-Speed Milling and Experimental Validation

作　　者：曹自洋[1] 李华[1] 殷振[1] 谢鸥[1] 

机构地区：[1]苏州科技学院机电工程系,江苏苏州215011

出　　处：《机械设计与制造》2013年第5期183-185,共3页Machinery Design & Manufacture

基　　金：江苏省自然科学基金资助项目(BK2011314);国家自然科学基金资助项目(51075288);苏州市科技计划资助项目(SYG201244)

摘　　要：再生型颤振是制约高速铣削加工效率和零件加工质量的主要因素。以高速铣削加工为研究对象,建立了考虑再生效应的高速铣削动态铣削力模型和颤振稳定域解析模型,通过模态实验获得机床-刀具系统的频响函数,在此基础上综合使用铣削稳定性判据进行数值分析,获得了高速铣削颤振稳定域的解析解。最后,进行了零件颤振稳定性铣削加工实验,实验得到的结果与仿真结果吻合良好,由此验证了建立的颤振系统动力学模型和颤振稳定性解析模型的正确性。Regenerative chatter is a major factor restricting the process efficiency and quality of high speed milling.For the research of high speed milling process,the dynamic milling force model and chatter stability domain analytical model is constructed,and the dynamic regenerative effects are taken into account.The machine-tool system frequency response function is obtained through modal testing.The analytical solution of the chatter stability domain is achieved by numerical analysis based on the above study,with integrated use of milling stability criterion.Finally,the milling experiments are established and the experiment results show a good agreement with the simulation results.Therefore,the correctness of chatter system dynamics model and chatter stability analytical model is validated.

关 键 词：高速铣削 再生颤振 动态切削力 稳定性预测 

分 类 号：TH16[机械工程—机械制造及自动化]