Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V | |
Ye GG; Xue SF; Ma W; Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. | |
Source Publication | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY |
2017 | |
Volume | 88Issue:1-4Pages:1161-1174 |
ISSN | 0268-3768 |
Abstract | Increasing the cutting speed to an ultra-high level usually gives rise to a chip flow transition from continuously serrated to discontinuously segmented, which is one of the most fundamental and challenging problems in metal cutting. In this work, we experimentally performed the ultra-high-speed cutting on Ti-6Al-4V with a maximum cutting speed of 210 m/s, focusing on the physical phenomena accompanying the discontinuously segmented chip flow. It reveals that the discontinuously segmented chip flow can be attributed to the shear fracture induced by the fully matured shear banding, and there exists a ductile-brittle transition of the shear fracture as the cutting speed increases to an ultra-high level. In addition, the critical condition for the onset of segmented chip flow is presented using the momentum diffusion-based shear band evolution model, which gives good prediction for the chip segmentation. |
DOI | 10.1007/s00170-016-8847-2 |
URL | 查看原文 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000392308400100 |
WOS Keyword | High-speed machining ; Shear banding ; Segmented chip ; Discontinuous chip ; Momentum diffusion |
WOS Research Area | Automation & Control Systems ; Engineering |
WOS Subject | Automation & Control Systems ; Engineering, Manufacturing |
Funding Organization | This work was supported by the Nature Science Foundation of China (Grants Nos: 11132011, 11402278), the National Basic Research Program of China (Grant No: 2012CB937500), and the Fundamental Research Funds for the Central Universities (15CX02110A). |
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/311007/60112 |
Collection | 非线性力学国家重点实验室 |
Corresponding Author | Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
Recommended Citation GB/T 7714 | Ye GG,Xue SF,Ma W,et al. Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,88,1-4,:1161-1174. |
APA | Ye GG,Xue SF,Ma W,戴兰宏,&Dai, LH .(2017).Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,88(1-4),1161-1174. |
MLA | Ye GG,et al."Onset and evolution of discontinuously segmented chip flow in ultra-high-speed cutting Ti-6Al-4V".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 88.1-4(2017):1161-1174. |
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