Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V

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	Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V
	Ye GG; Xue SF; Ma W; Dai LH(戴兰宏)
刊名	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2017
通讯作者邮箱	lhdai@lnm.imech.ac.cn
卷号	88 期号:1-4 页码:1161-1174
ISSN号	0268-3768
通讯作者	Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Ye, G. G.; Xue, S. F.] China Univ Petr, Coll Pipeline & Civil Engn, Dept Engn Mech, Qingdao 266580, Shandong, Peoples R China; [Ma, W.] Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China; [Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
中文摘要	Increasing the cutting speed to an ultra-high level usually gives rise to a chip flow transition from continuously serrated to discontinuously segmented, which is one of the most fundamental and challenging problems in metal cutting. In this work, we experimentally performed the ultra-high-speed cutting on Ti-6Al-4V with a maximum cutting speed of 210 m/s, focusing on the physical phenomena accompanying the discontinuously segmented chip flow. It reveals that the discontinuously segmented chip flow can be attributed to the shear fracture induced by the fully matured shear banding, and there exists a ductile-brittle transition of the shear fracture as the cutting speed increases to an ultra-high level. In addition, the critical condition for the onset of segmented chip flow is presented using the momentum diffusion-based shear band evolution model, which gives good prediction for the chip segmentation.
分类号	二类
类目[WOS]	Automation & Control Systems ; Engineering, Manufacturing
研究领域[WOS]	Automation & Control Systems ; Engineering
关键词[WOS]	High-speed machining ; Shear banding ; Segmented chip ; Discontinuous chip ; Momentum diffusion
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1007/s00170-016-8847-2
语种	英语
WOS记录号	WOS:000392308400100
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60112]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Ye GG,Xue SF,Ma W,et al. Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,88(1-4):1161-1174.
APA	Ye GG,Xue SF,Ma W,&戴兰宏.(2017).Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,88(1-4),1161-1174.
MLA	Ye GG,et al."Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 88.1-4(2017):1161-1174.