摘要
颤振稳定域分析的叶瓣图构建为铣削过程中参数优化的基础,但对于实际加工来说,铣削力不易通过测试获取。针对此问题,展开了基于铣削力仿真的叶瓣图构建方法研究。首先,通过有限元仿真模拟实际铣削过程,得到铣削力大小以及铣削力系数;其次,通过模态试验获取主轴-刀具系统的模态参数,再以铣削系数和模态参数为基础,构建铣削稳定性叶瓣图;最后,结合实际铣削加工的试验测试验证了叶瓣图的正确性。本研究可为优化切削参数、抑制实际铣削过程中颤振的产生提供参考,不仅可以提高工件的加工效率,也增强了系统的稳定性。
Optimizing the parameters of the milling process is important for improving processing efficiency, and is based on milling stability lobe construction. However, since the milling force of real work-pieces is not measurable during production, milling force simulation is introduced to analyzed the milling stability lobe graph. First, the milling force and milling coefficients were obtained using finite element simulation. Then, experiments were carried out to obtain the modal parameters of a tool-machine system. Finally, milling stability lobes were constructed based on the above analysis, and the effectiveness of the lobe was verified with an actual manufacturing process. This research can provide a reference for the inhibition of chatter in the milling process by improving the machining efficiency and enhancing the system's stability. Moreover, it can benefit the actual selection of machining parameters for milling processes. © 2016, Editorial Department of JVMD. All right reserved.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2016年第6期1136-1141,共6页
Journal of Vibration,Measurement & Diagnosis
基金
国家数控机床重大专项资助项目(2013ZX04012071)
关键词
铣削力
稳定性
仿真模拟
参数优化
Efficiency
Finite element method
Modal analysis
Stability
