| The chip-flow behaviors and formation mechanisms in the orthogonal cutting process of Ti6Al4V alloy | |
Ma W(马维) ; Chen XY; Shuang F; Ma, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
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| Source Publication | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
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| 2017 | |
| Volume | 98Pages:245-270 |
| ISSN | 0022-5096 |
| Abstract | 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. |
| Keyword | Metal Orthogonal Cutting Chip Flow Stability Plastic Instability Shear Deformation Localization Instability Criterion |
| DOI | 10.1016/j.jmps.2016.07.023 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000390972900014 |
| WOS Keyword | Metal orthogonal cutting ; Chip flow stability ; Plastic instability ; Shear deformation localization ; Instability criterion |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Funding Organization | Key National Nature Science Foundation of China [11132011] ; National Nature Science Foundation of China [11572337, 51575029] |
| Department | LMFS工程地质体力学(LEM) |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59968 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Ma, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Ma W,Chen XY,Shuang F,et al. 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,&Ma, W .(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. |
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| IMCAS-J2016-344.pdf（3527KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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