摘要
对过程阻尼效应在钛合金铣削加工中的应用进了行研究。利用隐式龙格库塔法,计算典型钛合金材料铣削加工中干涉产生的侵入面积以及阻力,建立考虑过程阻尼效应的非线性铣削动力学模型,并基于此模型设计减振后角抑制颤振。计算与试验结果对比分析表明,所建模型能够较为准确地预测稳定性极限,过程阻尼效应可使低速区极限切深显著增加,而减振后角可使过程阻尼效应增强,进一步拓展稳定区域。
The application of process damping in titanium alloy milling is studied.By using the implicit Runge-Kutta method,the indentation area and resistance caused by interference in the milling of typical titanium alloy is calculated,a nonlinear model that considers process damping is established,and the anti-vibration relief angle is designed to suppress chatter.The computed and experimental results indicate that the model is valid.Limit cutting depth at low speed can be significantly improved due to process damping,and the anti-vibration relief angle can strengthen the process damping effect and further expand the stable region.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2015年第6期1165-1172,1206,共8页
Journal of Vibration,Measurement & Diagnosis
基金
国家自然科学基金资助项目(51475234)
关键词
钛合金
铣削加工
颤振
过程阻尼
减振后角
titanium alloy
milling
chatter
process damping
anti-vibration relief angle
