Critical cutting speed for onset of serrated chip flow in high speed machining

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	Critical cutting speed for onset of serrated chip flow in high speed machining
	Ye GG; Chen Y(陈艳); Xue SF; Dai LH(戴兰宏)
刊名	INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
	2014-11
通讯作者邮箱	lhdai@lnm.imech.ac.cn
卷号	86 页码:18-33
关键词	TITANIUM-ALLOY TI-6AL-4V ADIABATIC SHEAR BANDS NUMERICAL-SIMULATION 1045 STEEL MODEL INSTABILITY STRESS LOCALIZATION SEGMENTATION DEFORMATION
ISSN号	0890-6955
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.; Chen, Y.; Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Ye, G. G.; Xue, S. F.] China Univ Petr, Coll Pipeline & Civil Engn, Dept Engn Mech, Dongying 266580, Shandong, Peoples R China
合作状况	国内
中文摘要	The transition of continuously smooth chip flow to periodically serrated chip flow as the cutting speed increasing is one of the most fundamental and challenging problems in high speed machining. Here, an explicit expression of the critical cutting speed for the onset of serrated chip flow, which is given in terms of material properties, uncut chip thickness and tool rake angle, is achieved based on dimensional analysis and numerical simulations. It could give reasonable predictions of the critical cutting speeds at which chips change from continuous to serrated for various metallic materials over wide ranges of uncut chip thickness and tool rake angle. More interestingly, it is found that, as the turbulent flow is controlled by the Reynolds number, the transition of the serrated chip flow mode is dominated by a Reynolds thermal number. Furthermore, the influences of material properties on the emergence of serrated chip flow are systematically investigated, the trends of which show good agreement with Recht's classical model. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题	Engineering
分类号	一类
收录类别	SCI ; EI
资助信息	This work was supported by the Nature Science Foundation of China (Grants nos. 11132011 and 11202221), the National Basic Research Program of China (Grant no. 2012CB937500) and the China Postdoctoral Science Foundation (Grant no. 2013M540148).
原文出处	http://dx.doi.org/10.1016/j.ijmachtools.2014.06.006
语种	英语
WOS记录号	WOS:000342254300003
公开日期	2014-11-03
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49129]
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,Chen Y,Xue SF,et al. Critical cutting speed for onset of serrated chip flow in high speed machining[J]. INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE,2014,86:18-33.
APA	Ye GG,Chen Y,Xue SF,&Dai LH.(2014).Critical cutting speed for onset of serrated chip flow in high speed machining.INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE,86,18-33.
MLA	Ye GG,et al."Critical cutting speed for onset of serrated chip flow in high speed machining".INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE 86(2014):18-33.