Enhancing surface integrity by high-speed extrusion machining

doi:10.1007/s00170-016-9252-6

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	Enhancing surface integrity by high-speed extrusion machining
	Liu Y; Cai SL; Shang XC; Dai LH(戴兰宏); Cai, SL (reprint author), State Grid Corp China, China Elect Power Res Inst, Beijing 100192, Peoples R China.; Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2017-03-01
卷号	89 期号:42863 页码:2141-2150
ISSN	0268-3768
摘要	High-speed machining (HSM) is an advanced machining technology to form components. However the poor surface integrity tends to appear due to chip flow instability in HSM. It is found that the surface integrity results from the competition of shear deformation instability between in primary shear zone (PSZ) and in separating shear zone (SSZ). To improve the surface integrity of machined components the systematic high-speed extrusion machining (HSEM) experiments of magnesium alloy AZ31B with different constraint extrusion factors (CEFs) were carried out. The instability of shear deformation in PSZ is suppressed and the microwaves on machined surface disappear when CEF is equal to or larger than a certain value. The measurements of the machined surface show that an improvement of surface integrity is achieved if CEF exceeds a certain value. The theoretical model for HSEM was established to elucidate the critical CEF. The underlying physics of surface integrity in HSEM is further revealed. The experimental results verify the validity of the theoretical model.
关键词	High-speed Extrusion Machining Surface Integrity Characteristic Instability Time Chip Morphology Transition
DOI	10.1007/s00170-016-9252-6
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000396101100074
关键词[WOS]	CHIP FORMATION ; MAGNESIUM ALLOY ; CUTTING SPEED ; SHEAR ; INSTABILITY ; TI-6AL-4V ; STATE ; MODEL
WOS研究方向	Automation & Control Systems ; Engineering
WOS类目	Automation & Control Systems ; Engineering, Manufacturing
项目资助者	National Natural Science Foundation of China(11132011) ; Fundamental Research Funds for the Central Universities(FRF-TP-15-101A1) ; China Postdoctoral Science Foundation(2016M591066) ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; National Basic Research Program of China(2012CB937500) ; CAS/SAFEA International Partnership Program for Creative Research Teams
课题组名称	LNM冲击动力学与新型材料力学性能
论文分区	二类
力学所作者排名	1
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60579
专题	非线性力学国家重点实验室
通讯作者	Cai, SL (reprint author), State Grid Corp China, China Elect Power Res Inst, Beijing 100192, Peoples R China.; Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Liu Y,Cai SL,Shang XC,et al. Enhancing surface integrity by high-speed extrusion machining[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,89,42863,:2141-2150.
APA	Liu Y,Cai SL,Shang XC,戴兰宏,Cai, SL ,&Dai, LH .(2017).Enhancing surface integrity by high-speed extrusion machining.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,89(42863),2141-2150.
MLA	Liu Y,et al."Enhancing surface integrity by high-speed extrusion machining".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 89.42863(2017):2141-2150.

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