A numerical study on nanometric cutting mechanism of lutetium oxide single crystal
A numerical study on nanometric cutting mechanism of lutetium oxide single crystal
复制标题
氧化镥单晶纳米切削机理的数值研究
DOI:
10.1016/j.apsusc.2019.143715
复制
发表时间:
2019-12
影响因子:
6.7
通讯作者:
Fang Fengzhou
中科院分区:
文献类型:
--
作者:
He Yue;Lai Min;Fang Fengzhou
It is hard for ultra-precision machining to realize nanometric accuracy on lutetium oxide single crystal. However, molecular dynamics analysis can be employed to reveal the atomic scale details of material removal process, providing a theoretic basis. This article focuses on both cutting speed and cutting depth, analyzing the influence on cutting force, stress distribution, subsurface deformation and crack formation. The results show that amorphization takes place in the region which undergoes a high compressive stress. Crack initiation emerges with a release of tensile stress and is always accompanied with a sharp drop in cutting force. A higher cutting speed and larger cutting depth result in a larger critical local tensile stress for crack initiation. Cutting zone and interface area are prone to damage concentration. Once these damages combine together, there would be a visible bulk material peeling off.
登录
查看更多内容
影响因子:
3.6
作者:
Martinet, C.;Pillonnet, A.;Garapon, C.
通讯作者:
Garapon, C.
影响因子:
3.5
作者:
Kim, D. E.;Oh, S. I.
通讯作者:
Oh, S. I.
影响因子:
3.3
作者:
Goel, Saurav;Luo, Xichun;Reuben, Robert L.
通讯作者:
Reuben, Robert L.
DOI:
--
发表时间:
2009
期刊:
--
影响因子:
--
作者:
A. Stukowski
通讯作者:
A. Stukowski
影响因子:
3.3
作者:
Pei, Q. X.;Lu, C.;Lee, H. P.
通讯作者:
Lee, H. P.