| 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.
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| Source Publication | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
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| 2017-03-01 | |
| Volume | 89Issue:42863Pages:2141-2150 |
| ISSN | 0268-3768 |
| Abstract | 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. |
| Keyword | High-speed Extrusion Machining Surface Integrity Characteristic Instability Time Chip Morphology Transition |
| DOI | 10.1007/s00170-016-9252-6 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000396101100074 |
| WOS Keyword | CHIP FORMATION ; MAGNESIUM ALLOY ; CUTTING SPEED ; SHEAR ; INSTABILITY ; TI-6AL-4V ; STATE ; MODEL |
| WOS Research Area | Automation & Control Systems ; Engineering |
| WOS Subject | Automation & Control Systems ; Engineering, Manufacturing |
| Funding Organization | 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 |
| Department | LNM冲击动力学与新型材料力学性能 |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60579 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | 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. |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| JouAr-2017-071.pdf（2915KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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