Experimental and Finite Element Simulation of Milling Process for gamma-TiAl Intermetallics
文献类型：期刊论文
| 作者 | Zhou Li1,2; Cui Chao1; Jia Qing2; Ma Yingshi1 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2017-04-11 |
| 卷号 | 53期号:4页码:505-512 |
| 关键词 | gamma-TiAl intermetallics milling process meso-model finite element |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2016.00256 |
| 通讯作者 | Jia Qing(qjia@imr.ac.cn) |
| 英文摘要 | gamma-TiAl intermetallics are attractive candidates for applications in aircraft turbine engines due to their low density and good mechanical properties at high temperature. However, the low room temperature ductility makes the machinability of these materials poorer compared to the conventional alloys. In this work, a meso-model of gamma-TiAl intermetallic was developed using ABAQUS finite element software. The surface morphology and edge fracture mechanism of different material models were analyzed, and the effects of cutting parameters on the surface roughness and size of edge fracture were investigated. The results indicate that the cracks and pits occur between the lamellar and lamellar with different material properties. At the same time, due to the low ductility of gamma-TiAl intermetallic, the negative shear angle begins to form at the exit of workpiece, then the edge fracture is formed. In addition, for both surface roughness and size of edge fracture, the experimental data are slightly higher than the simulated data obtained by the hexagonal lamellar model, and smaller than those obtained by the rectangular lamellar model. With the increasing of cutting depth, the surface roughness and the size of edge fracture increase gradually, on the contrary, the cutting speed has a small effect on them. Therefore, in order to obtain a fine surface quality during machining of gamma-TiAl intermetallic, the cutting speed can be adopted as higher as possible, but not the cutting depth. |
| 资助项目 | General Project of Liaoning Provincial Department of Education[LG201603] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000399921900015 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | General Project of Liaoning Provincial Department of Education |
| 源URL | [http://ir.imr.ac.cn/handle/321006/124556]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jia Qing |
| 作者单位 | 1.Shenyang Ligong Univ, Sch Mech Engn, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Li,Cui Chao,Jia Qing,et al. Experimental and Finite Element Simulation of Milling Process for gamma-TiAl Intermetallics[J]. ACTA METALLURGICA SINICA,2017,53(4):505-512. |
| APA | Zhou Li,Cui Chao,Jia Qing,&Ma Yingshi.(2017).Experimental and Finite Element Simulation of Milling Process for gamma-TiAl Intermetallics.ACTA METALLURGICA SINICA,53(4),505-512. |
| MLA | Zhou Li,et al."Experimental and Finite Element Simulation of Milling Process for gamma-TiAl Intermetallics".ACTA METALLURGICA SINICA 53.4(2017):505-512. |
入库方式： OAI收割
来源：金属研究所
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