MD simulation of tool wear behaviour based on changes of tool rake and flank angle caused by diamond tool position adjustment

被引:5
|
作者
Wang, Ming Hai [1 ]
You, Si Yao [1 ]
Wang, Fu Ning [1 ]
Liu, Qi [1 ]
机构
[1] Shenyang Aerosp Univ, Coll Mech & Elect Engn, Shenyang, Liaoning, Peoples R China
基金
中国国家自然科学基金;
关键词
Tool position adjustment; nanometric cutting; tool wear; molecular dynamics simulation; SURFACE-ROUGHNESS; GRAPHITIZATION; SILICON; DUCTILE;
D O I
10.1080/08927022.2018.1559309
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new method for adjusting the tool rake and flank angles by changing the position of the tools was used to explore the behaviour of wear using MD simulation. In this paper, a new improved tool was used and found to have lower wear compared to conventional tools. Simulations under the same cutting conditions were carried out using a tool swinging to six different rake angles of six different adjustment angles. Further analysis of the influence of different adjustment angles on the wear behaviour of the tool by cutting force, friction coefficient, temperature, radial distribution function and wear rate was conducted. The highest normal force was observed with the tool swung to -15 degrees, and the tangential force did not produce any significant changes. The friction coefficients were also not observed as a linear change with the increasing angle of adjustment. At the same time, the particularities and differences at -15 degrees were illustrated, from the most intuitive tool flank wear images. Finally, the causes of this phenomenon were further explained in terms of temperature and radial distribution function and the correctness of this phenomenon was proved, which is different from previous researches.
引用
收藏
页码:509 / 517
页数:9
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