论文:2012,Vol:30,Issue(4):622-627
引用本文:
殷鹏飞, 张蓉, 熊江涛, 赵凯, 李京龙. 搅拌摩擦焊准稳态温度场数值模拟[J]. 西北工业大学
Yin Pengfei, Zhang Rong, Xiong Jiangtao, Zhao Kai, Li Jinglong. An Effective Numerical Simulation of Temperature Distribution of Friction Stir Welding in Quasi-Steady-State[J]. Northwestern polytechnical university

搅拌摩擦焊准稳态温度场数值模拟
殷鹏飞1, 张蓉1, 熊江涛2, 赵凯1, 李京龙2
1. 西北工业大学 理学院 空间应用物理与化学教育部重点实验室,陕西 西安 710072;
2. 西北工业大学 材料学院 陕西省摩擦焊接重点实验室,陕西 西安 710072
摘要:
搅拌摩擦焊接过程中的准稳态温度场分布对最终接头的焊接质量有着十分重要的影响,文中在深入分析搅拌摩擦焊物理过程的基础上综合考虑了摩擦产热和塑性变形产热作为其热源,建立了相应的温度场数值模型,在此基础上运用COMSOL有限元软件对工业纯铝1100在转速750 r/min、焊接速度300 mm/s工艺参数下的准稳态温度场进行计算,并利用红外测温装置对计算结果进行验证,结果表明该模型可以较准确地描述搅拌摩擦焊准稳态的温度场分布。
关键词:    搅拌摩擦焊    准稳态    温度场    数值模拟   
An Effective Numerical Simulation of Temperature Distribution of Friction Stir Welding in Quasi-Steady-State
Yin Pengfei1, Zhang Rong1, Xiong Jiangtao2, Zhao Kai1, Li Jinglong2
1. Ministry of Education, Key Laboratary of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, China;
2. Shaanxi Key Laboratary of Friction Welding Technologies, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
The temperature distribution of friction stir welding in quasi-steady-state has great influence on propertiesof the welded joint. In this paper,a temperature field numerical model of friction stir welding in quasi-steady-statewas established with the heat generated by the friction and the plastic deformation of material considered. Sections1 through 4 explain the simulation mentioned in the title,which we believe is effective and whose core consists of:(1) finite element software COMSOL was used to calculate the temperature field of friction stir welding in quasi-steady-state for Chinese commercial-purity aluminum 1100,at the rotational speed of 750 r/min and welding speedof 300 mm/s; (2) Fig. 8 in subsection 4. 2 gives the schematic of experimental setup designed by us for measuringthe temperature field. Fig. 9 in subsection 4. 2 shows the comparison of simulated temperature profile computed withCOMSOL with the experimental curve (data) obtained with our experimental setup; the simulation temperature pro-file is close to the experiment data,indicating preliminarily that our numerical simulation is indeed effective.
Key words:    computer sofeware    efficiency    experiments    finite element method    friction stir welding    heat con-duction    mathematical models    plastic deformation    regression analysis    schematic diagrams    temper-ature distribution    three dimensional;quasi-steady-state    simulation   
收稿日期: 2011-10-12     修回日期:
DOI:
基金项目: 国家自然科学基金(51071123)资助
通讯作者:     Email:
作者简介: 殷鹏飞(1987-),西北工业大学博士研究生,主要从事摩擦焊温度场及粉体技术研究。
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