Lanzhou University of Technology Institutional Repository (LUT_IR)
Finite element analysis of thermal effect on large thick titanium alloy electron beam welding with different focus | |
Zhang, Binggang1; Chen, Guoqing1; Guo, Wei1; Shi, Mingxiao2 | |
2012 | |
会议名称 | 2012 International Conference on Mechanical Engineering and Materials, ICMEM 2012 |
会议录名称 | Applied Mechanics and Materials |
卷号 | 152-154 |
页码 | 665-671 |
会议日期 | January 15, 2012 - January 16, 2012 |
会议地点 | Melbourne, VIC, Australia |
出版者 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
摘要 | A composite heat source model composed of Gaussian surface heat source and rotational paraboloidal body heat source have been established to simulate the temperature field of 20mm TA15 titanium alloy. The results show that the simulated peak temperature of molten pool during surface focus welding is 3200°C, while the simulated peak temperature of molten pool during lower focus is 2700°C, and the whole surface temperature of surface focus welding is higher than that of lower focus welding, while the whole inner temperature of surface focus welding is lower than that of lower focus. The simulated temperature gradient in the direction of depth during surface focus welding is large, but the simulated temperature gradient in the direction of depth during lower focus welding is small. The simulated result was verified by the thermocouple and contrast of weld cross section morphology. The simulated thermal cycle curves are well consistent to the results tested by thermocouple, and there is a good consistency between the simulated molten pool morphology and the real weld morphology, they verify the accuracy of finite element model. © (2012) Trans Tech Publications. |
关键词 | Computer simulation Electron beam welding Finite element method Mechanical engineering Morphology Thermal gradients Thermocouples Titanium alloys Cross-section morphology Finite element models Gaussian surface Heat source models Heat sources Molten pool Peak temperatures Simulated results Surface temperatures TA15 titanium alloy Temperature field Temperature gradient Thermal cycle curve Weld morphology |
DOI | 10.4028/www.scientific.net/AMM.152-154.665 |
收录类别 | EI |
语种 | 英语 |
EI入藏号 | 20120814793075 |
EI主题词 | Surfaces |
ISSN | 16609336 |
来源库 | Compendex |
分类代码 | 951 Materials Science - 944.5 Temperature Measuring Instruments - 932 High Energy Physics; Nuclear Physics; Plasma Physics - 931 Classical Physics; Quantum Theory; Relativity - 921.6 Numerical Methods - 723.5 Computer Applications - 641.1 Thermodynamics - 608 Mechanical Engineering, General - 542.3 Titanium and Alloys |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/116479 |
专题 | 兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室 |
作者单位 | 1.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; 2.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China |
推荐引用方式 GB/T 7714 | Zhang, Binggang,Chen, Guoqing,Guo, Wei,et al. Finite element analysis of thermal effect on large thick titanium alloy electron beam welding with different focus[C]:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany,2012:665-671. |
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