摘要
为了研究数控车床高效稳定切削机理,建立了刀具侧颤振动力学模型,应用计算机模拟仿真有限元分析技术和仿真结果指导下的实验对比,分析了车削系统重叠系数、单位切削宽度上的切削刚度系数、主振系统阻尼比对稳定性瓣图的影响,用实验验证由仿真技术研究的颤振稳定性瓣图的有效性。实验证明:选择颤振稳定性瓣图的稳定区域的切削速度,可以大幅度增加切削宽度,实现高效切削。
In order to study the highly efficient and stable cutting of computer numerical control lathe（CNC lathe）, this paper established a dynamics model of chatter turning system on tool side, and analyzed the influences of the chatter stable lobes about the CNC lathe system＇s overlap coefficient, cutting rigidity coefficient in unit width, main vibration system＇s damping ratio, and observed the chatter effects about the chatter stable lobes in different regions by experimental methods. Research shows that the choice of the cutting speed in the stable regions can significantly increase the cutting width, and improve the efficiency of cutting.
出处
《机械》
2016年第2期70-73,共4页
Machinery
基金
湖南省教育厅科学研究项目(10C0114)
