| Suppression of Hopf bifurcation in metal cutting by extrusion machining | |
Liu Y; Cai SL ; Shang XC; Dai LH(戴兰宏); Cai, SL; Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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| Source Publication | NONLINEAR DYNAMICS
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| 2017-04-01 | |
| Volume | 88Issue:1Pages:433-453 |
| ISSN | 0924-090X |
| Abstract | Hopf bifurcation is a common phenomenon during the metal cutting process which results in poor surface finish of the workpiece and inhomogeneous grain structure in materials. Therefore understanding and controlling Hopf bifurcation in metal cutting are necessary. In this work the systematic low-speed extrusion machining experiments were conducted to suppress Hopf bifurcation phenomenon. It is found that the suppression of Hopf bifurcation is achieved with the increasing constraint extrusion degree. In order to reveal the mechanism of the suppression of Hopf bifurcation a new nonlinear dynamic model for extrusion machining is developed where the convection the diffusion the extrusion of constraint the thermal-softening deformation and the fracture-type damage are included. The theoretical predictions are in agreement with the experimental results; therefore the present theoretical model is effective to characterize the suppression of Hopf bifurcation in metal cutting. Based on the numerical calculation of the theoretical model the mechanisms underlying in extrusion machining are further revealed: Fracture-type deformation is more important than the thermal-softening-type deformation in low-speed extrusion machining; however the thermal-softening-type deformation is the primary deformation mode for high-speed extrusion machining. |
| Keyword | Hopf Bifurcation Metal Cutting Bifurcation Suppression Nonlinear Dynamic Model |
| DOI | 10.1007/s11071-016-3251-x |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000397829200026 |
| WOS Keyword | CHIP FORMATION ; SHEAR-BAND ; NONLINEAR DYNAMICS ; SPEED ; FLOW ; INSTABILITY ; TI-6AL-4V ; EVOLUTION ; TITANIUM ; SYSTEMS |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Organization | National Natural Science Foundation of China(11132011 ; Fundamental Research Funds for the Central Universities(FRF-TP-15-101A1) ; Opening Fund of State Key Laboratory of Nonlinear Mechanics China Postdoctoral Science Foundation(2016M591066) ; National Basic Research Program of China(2012CB937500) ; CAS/SAFEA International Partnership Program for Creative Research Teams ; 11602236) |
| Department | LNM冲击动力学与新型材料力学性能 |
| Classification | 一类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60569 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Cai, SL; Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Liu Y,Cai SL,Shang XC,et al. Suppression of Hopf bifurcation in metal cutting by extrusion machining[J]. NONLINEAR DYNAMICS,2017,88,1,:433-453. |
| APA | Liu Y,Cai SL,Shang XC,戴兰宏,Cai, SL,&Dai, LH .(2017).Suppression of Hopf bifurcation in metal cutting by extrusion machining.NONLINEAR DYNAMICS,88(1),433-453. |
| MLA | Liu Y,et al."Suppression of Hopf bifurcation in metal cutting by extrusion machining".NONLINEAR DYNAMICS 88.1(2017):433-453. |
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| JouAr-2017-063.pdf（5100KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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