Enhancing surface integrity by high-speed extrusion machining
文献类型：期刊论文
| 作者 | Liu Y; Cai SL ; Shang XC; Dai LH(戴兰宏)
|
| 刊名 | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 89期号:42863页码:2141-2150 |
| 关键词 | High-speed extrusion machining Surface integrity Characteristic instability time Chip morphology transition |
| ISSN号 | 0268-3768 |
| 中文摘要 | 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. |
| 类目[WOS] | Automation & Control Systems ; Engineering, Manufacturing |
| 研究领域[WOS] | Automation & Control Systems ; Engineering |
| 关键词[WOS] | CHIP FORMATION ; MAGNESIUM ALLOY ; CUTTING SPEED ; SHEAR ; INSTABILITY ; TI-6AL-4V ; STATE ; MODEL |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000396101100074 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60579]  |
| 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 | 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.(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. |
入库方式： OAI收割
来源：力学研究所
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