Finite element simulation and experimental investigation on cutting mechanism in vibration-assisted micro-milling

被引：34
作者：
Chen, Wanqun [1 ,2 ]
Zheng, Lu [1 ]
Teng, Xiangyu [1 ]
Yang, Kai [3 ]
Huo, Dehong [1 ]
机构：
[1] Newcastle Univ, Sch Engn, Newcastle Upon Tyne, Tyne & Wear, England
[2] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Heilongjiang, Peoples R China
[3] Army Aviat Inst, Beijing 101123, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2019年 / 105卷 / 11期
基金：
英国工程与自然科学研究理事会; 中国国家自然科学基金;
关键词：
Vibration-assisted machining; Micro-milling; Finite element modelling; Cutting mechanism; Size effect; Tool wear; HARDENED TOOL STEEL; PREDICTION;
D O I：
10.1007/s00170-019-03402-0
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In vibration-assisted milling, vibrations are applied in feed and/or cross-feed directions during micro-milling process, and instantaneous cutting thickness can be changed significantly. As a result, its cutting mechanics also change dramatically. This paper investigates the underlying cutting mechanism of vibration-assisted micro-milling by using finite element (FE) simulations and experiments. A finite element model of vibration-assisted micro-milling process is established for magnesium alloys machining with the Johnson-Cook material model. The vibration-assisted micro-milling is investigated in terms of size effect and material removal mechanism. It is found that vibration frequency has a significant influence on the machining mechanism, e.g. suppression of burr formation and reduction of cutting forces and tool wear. The FE simulation results are compared with the conventional micro-milling and verified by the experimental results.
引用
收藏
页码：4539 / 4549
页数：11
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