Numerical analysis of chip formation mechanisms in orthogonal cutting of Ti6Al4V alloy based on a CEL model

doi:10.1007/s12289-017-1341-z

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Numerical analysis of chip formation mechanisms in orthogonal cutting of Ti6Al4V alloy based on a CEL model
	Shuang F(双飞); Chen XY; Ma W(马维)
刊名	INTERNATIONAL JOURNAL OF MATERIAL FORMING
	2018-03-01
卷号	11 期号:2 页码:185-198
关键词	Coupled Eulerian-Lagrangian model Orthogonal cutting process Shear-localized instability Weak mesh sensitivity Streamline field
ISSN号	1960-6206
DOI	10.1007/s12289-017-1341-z
英文摘要	This article proposes an improved numerical model based on the coupled Eulerian-Lagrangian (CEL) formulation for the numerical analysis of metal cutting. Preliminary calculation results show that the model overcomes some shortcomings of traditional finite element (FE) models, for example, the mesh distortion and the limitation of the separation line method in the Lagrangian approach and setting the chip shape in advance in the Eulerian approach. Therefore, application of this model can provide a convenient simulation for stable and unstable cutting processes of metals and a vivid demonstration for the streamline field of plastic flow of a workpiece material during cutting. Moreover, it can accurately characterize the evolutions of stress, strain, and temperature fields in the chip, the variation histories of the cutting force with time and the shear-localized instability behaviors in the serrated chip. The simulation results have sufficiently demonstrated the potential of applying the CEL model to the numerical analysis of metal cutting. In particular, the CEL model facilitates the simulations of some special cutting processes, such as the machining of a vibrating workpiece and a thin wall component.
分类号	二类/Q1
URL标识	查看原文
WOS关键词	FINITE-ELEMENT-METHOD ; TITANIUM-ALLOY ; ALE FORMULATION ; SIMULATION ; TI-6AL-4V ; SEGMENTATION ; INSTABILITY ; DYNAMICS ; CONTACT ; STRESS
WOS研究方向	Engineering, Manufacturing ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000426704800003
资助机构	Key National Nature Science Foundation of China [11132011] ; National Nature Science Foundation of China [11572337, 51575029]
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/77912]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Shuang F,Chen XY,Ma W. Numerical analysis of chip formation mechanisms in orthogonal cutting of Ti6Al4V alloy based on a CEL model[J]. INTERNATIONAL JOURNAL OF MATERIAL FORMING,2018,11(2):185-198.
APA	双飞,Chen XY,&马维.(2018).Numerical analysis of chip formation mechanisms in orthogonal cutting of Ti6Al4V alloy based on a CEL model.INTERNATIONAL JOURNAL OF MATERIAL FORMING,11(2),185-198.
MLA	双飞,et al."Numerical analysis of chip formation mechanisms in orthogonal cutting of Ti6Al4V alloy based on a CEL model".INTERNATIONAL JOURNAL OF MATERIAL FORMING 11.2(2018):185-198.