Thermal and flow behavior of melt pool during selective laser melting of AlSi10Mg powder in point exposure laser scan pattern
文献类型：会议论文
| 作者 | Tang, Pingmei1; Ding, Xueping2; Chen, Dengfu1; Yu, Sheng1; Duan, Xuanming2; Long, Ujun1; Duan, Huamei1 |
| 出版日期 | 2016 |
| 会议日期 | October 23, 2016 - October 27, 2016 |
| 会议地点 | Salt Lake City, UT, United states |
| 页码 | 317-324 |
| 英文摘要 | A three-dimensional model was developed for studying heat transfer and fluid flow of molten pool during selective laser melting (SLM) of AlSi10Mg powder in point exposure laser scan pattern. The effects of Marangoni convention and exposure time on temperature field, velocity field, molten pool dimensions and liquid lifetime have been investigated. The results showed that the shape of molten pool in point exposure laser scan pattern was circle while it was comet-shape in continuous exposure. Moreover, considering Marangoni effect with negative surface tension gradient, the maximum temperature of molten pool decreased, as well as the molten pool turned into wide and shallow. In addition, the variation of molten pool dimensions and liquid lifetime was not obvious with different exposure time. SLM of AlSi10Mg powder experiment was also carried out to demonstrate of the reliability of the physical model and simulation results. The experimental results were in good agreement with the results predicted by simulation. Copyright © 2016 MS&T16®. |
| 会议录 | Materials Science and Technology Conference and Exhibition 2016, MS and T 2016
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| 语种 | 英语 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/4808]  |
| 专题 | 机器人与3D打印技术创新中心 |
| 作者单位 | 1.College of Materials Science and Engineering, Chongqing University, Chongqing; 400044, China; 2.3D Printing Technology Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China |
| 推荐引用方式 GB/T 7714 | Tang, Pingmei,Ding, Xueping,Chen, Dengfu,et al. Thermal and flow behavior of melt pool during selective laser melting of AlSi10Mg powder in point exposure laser scan pattern[C]. 见:. Salt Lake City, UT, United states. October 23, 2016 - October 27, 2016. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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