中国机械工程 ›› 2013, Vol. 24 ›› Issue (3): 360-365.

• 机械基础工程 • 上一篇    下一篇

铣削加工过程稳定性分析

杨建中;李江威;屈文晓;张栋;周金强   

  1. 华中科技大学国家数控系统工程技术研究中心,武汉,430074
  • 出版日期:2013-02-10 发布日期:2013-02-27
  • 基金资助:
    国家自然科学基金资助项目(50975111,50835004);国家高技术研究发展计划(863计划)资助项目(2009AA04Z149) 
    National Natural Science Foundation of China(No. 50975111,50835004);
    National High-tech R&D Program of China (863 Program) (No. 2009AA04Z149)

#br# Analysis of Milling Process Stability

Yang Jianzhong;Li Jiangwei;Qu Wenxiao;Zhang Dong;Zhou Jinqiang   


  1. National Numerical Control System Engineering Research Center, Huazhong University of Science and Technology, Wuhan, 430074
  • Online:2013-02-10 Published:2013-02-27
  • Supported by:
     
    National Natural Science Foundation of China(No. 50975111,50835004);
    National High-tech R&D Program of China (863 Program) (No. 2009AA04Z149)

摘要:

考虑刀具和工件的动态特性,建立了二维铣削加工过程的动力学模型,在此基础上,推导了稳定性叶瓣图绘制的公式。通过仿真,分析了模态参数对稳定性叶瓣图形状的影响。结果表明:刚度和阻尼率影响叶瓣图的纵向形状,固有频率影响叶瓣图的横向形状,叶瓣图的主要形状由动刚度最小的模态决定。

关键词: 铣削加工, 稳定性;叶瓣图;模态参数

Abstract:

Considering the dynamic characteristics both of tool and workpiece a two-dimensional milling dynamics model was built. On the basis of that, a method to drow the stability lobe diagram was derived. The effect of model parameters on the shap of stability lobe diagram was analyzed by simulation. Stiffness and damping ratio affect the longitudinal shape of lobe diagram. Natural frequency affects the transverse shape of lobe diagram. Dynamic stiffness determines the primary shape of lobe diagram.

Key words: milling; , stability; , lobe diagram; , model parameter

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