Chatter and cutting forces analysis in machining of titanium alloy TB6 with vibration-free milling cutters

被引：0
|
作者：
Liu J. [1 ]
Qiao L. [1 ]
Chen W. [1 ]
机构：
[1] School of Mechanical Engineering and Automation, BeiHang University, Beijing
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2020年 / 51卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Chatter; Cutting force; Tool wear; Variable helix angle; Variable pitch;
D O I：
10.11817/j.issn.1672-7207.2020.02.009
中图分类号：
学科分类号：
摘要：
In order to study the chatter and cutting forces of vibration-free milling cutters (variable helix and variable pitch milling cutters) in cutting titanium alloy TB6, titanium alloy TB6 was machined with variable helix, variable pitch and standard milling cutters. The chatter and cutting force characteristics of the three types of milling cutter were studied by comparing those of the milling cutters at different cutting speeds and tool wears. The influence of cutting speed on the chatter and cutting force of the three types of milling cutters was studied by analyzing the changing of chatter and cutting force with cutting speed when the wear amount was 0.1, 0.2 and 0.3 mm. The effect of tool wear on the chatter and cutting force of the three types of milling cutters was studied by analyzing the changing of chatter and cutting force with tool wear when the cutting speed was 25, 30 and 35 m/min. The influence of tool geometric structure on chatter and cutting forces was studied by analyzing the chatter and cutting forces of the three types of milling cutters at the same cutting speed and wear amount. The results show that there is no obvious resonance in cutting process with the three types of milling cutters. The chatter and cutting forces of the three types of milling cutters increase with the increase of cutting speed and tool wear. The influence of tool geometric structure on the chatter is significant. Compared with the standard milling cutter, the change of helix angle and pitch effectively reduces the chatter. The effect of tool geometric structure on the cutting force is not obvious, and the variation trend of cutting force of the three types of milling cutters is different at different cutting speeds and wears. © 2020, Central South University Press. All right reserved.
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页码：349 / 358
页数：9
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