基于阻尼减振器的铣削过程稳定性研究  

Study on Stability of Milling Process Based on Damping Absorber

作　　者：李超[1] 沈春根[1] 范燕萍[1] 

机构地区：[1]江苏大学

出　　处：《工具技术》2016年第9期12-16,共5页Tool Engineering

基　　金：国家科技重大专项(2013ZX04009031)

摘　　要：针对薄壁件铣削加工中出现的颤振现象采用外置式阻尼减振器。该减振器与刀杆过盈配合联接为一体,铣削过程中可以吸收刀杆受到的振动,通过安装阻尼减振器和未安装阻尼减振器两个铣削对比试验,以阻尼材料、阻尼减振器安装位置为变量,探究该阻尼减振器对铣削抑振和加工稳定性的影响程度及变化规律。试验结果表明,安装该阻尼减振器后系统铣削稳定性得到提高,切削深度平均提高2.5倍。According to the chatter during mill machining of thin-wall components, an external damping absorber is proposed in this paper to restrain the vibration by interference fit to tool in milling process. A comparative trial with/without the damping absorber is built to investigate the influence and changing law of the damping absorber on the chatter suppres- sion and milling stability by changing the material and installing position of the damping absorber. Experiment results shows that the limiting chatter-free depth of cut increases 2.5 times by installing damping absorber.

关 键 词：铣削刀具 阻尼器 颤振 切削过程稳定性 

分 类 号：TG54[金属学及工艺—金属切削加工及机床] TH113[机械工程—机械设计及理论]