The chip-flow behaviors and formation mechanisms in the orthogonal cutting process of Ti6Al4V alloy
文献类型：期刊论文
| 作者 | Ma W(马维) ; Chen XY; Shuang F
|
| 刊名 | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
 |
| 出版日期 | 2017 |
| 卷号 | 98页码:245-270 |
| 通讯作者邮箱 | watwm@imech.ac.cn |
| 关键词 | Metal orthogonal cutting Chip flow stability Plastic instability Shear deformation localization Instability criterion |
| ISSN号 | 0022-5096 |
| 产权排序 | [Ma, Wei; Chen, Xiangyu; Shuang, Fei] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Ma, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | This work involves experimental and analytical investigations of chip flow stability in metal cutting process. First, in cutting experiments of Ti6Al4V alloy, the transformation of chip morphology from continuous to serrated and later to discontinuous was observed as the cutting speed increased. Scanning electron microscopic (SEM) observation of the shear fracture surface demonstrated shear-localized instability and intergranular failure behaviors. Then we used the improved orthogonal cutting model (OCM) to analyze the plastic flow process of work materials in a plane strain state. A corresponding governing equation system was set up, the dimensionless governing parameters were determined by dimensional analysis, and an instability criterion was established by linear perturbation analysis. Analytical results showed that the plastic instability of chip flow could take place in a continuous chip, which is different from the shear-localized instability in a serrated chip. Finally, in terms of the balance conditions between the kinetic energy and the surface energy, the sawtooth growth behavior in serrated chips and the formation mechanism of discontinuous chips were studied. |
| 分类号 | 一类 |
| 类目[WOS] | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| 研究领域[WOS] | Materials Science ; Mechanics ; Physics |
| 关键词[WOS] | Metal orthogonal cutting ; Chip flow stability ; Plastic instability ; Shear deformation localization ; Instability criterion |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1016/j.jmps.2016.07.023 |
| 语种 | 英语 |
| WOS记录号 | WOS:000390972900014 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59968]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Ma W,Chen XY,Shuang F. The chip-flow behaviors and formation mechanisms in the orthogonal cutting process of Ti6Al4V alloy[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2017,98:245-270. |
| APA | 马维,Chen XY,&Shuang F.(2017).The chip-flow behaviors and formation mechanisms in the orthogonal cutting process of Ti6Al4V alloy.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,98,245-270. |
| MLA | 马维,et al."The chip-flow behaviors and formation mechanisms in the orthogonal cutting process of Ti6Al4V alloy".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 98(2017):245-270. |
入库方式： OAI收割
来源：力学研究所
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