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6061-T6铝合金搅拌摩擦焊温度场的数值模型和参数影响分析

肖毅华 张浩锋

肖毅华, 张浩锋. 6061-T6铝合金搅拌摩擦焊温度场的数值模型和参数影响分析[J]. 机械科学与技术, 2017, 36(1): 119-126. doi: 10.13433/j.cnki.1003-8728.2017.0118
引用本文: 肖毅华, 张浩锋. 6061-T6铝合金搅拌摩擦焊温度场的数值模型和参数影响分析[J]. 机械科学与技术, 2017, 36(1): 119-126. doi: 10.13433/j.cnki.1003-8728.2017.0118
Xiao Yihua, Zhang Haofeng. Numerical Model and Influence Analysis of Parameters for Temperature Field in Friction Stir Welding of 6061-T6 Aluminum Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(1): 119-126. doi: 10.13433/j.cnki.1003-8728.2017.0118
Citation: Xiao Yihua, Zhang Haofeng. Numerical Model and Influence Analysis of Parameters for Temperature Field in Friction Stir Welding of 6061-T6 Aluminum Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(1): 119-126. doi: 10.13433/j.cnki.1003-8728.2017.0118

6061-T6铝合金搅拌摩擦焊温度场的数值模型和参数影响分析

doi: 10.13433/j.cnki.1003-8728.2017.0118
基金项目: 

国家自然科学基金项目(11302077)资助

详细信息
    作者简介:

    肖毅华(1984-),讲师,博士,研究方向为机械CAE分析,xiaoyihua@hnu.edu.cn

Numerical Model and Influence Analysis of Parameters for Temperature Field in Friction Stir Welding of 6061-T6 Aluminum Alloy

  • 摘要: 针对带圆柱搅拌针的搅拌头,推导了一种搅拌摩擦焊热源模型的一般表达式,按照滑动摩擦、粘着摩擦和混合滑动摩擦与粘着摩擦3种机制计算其中的摩擦应力,得到3种热源模型。采用ABAQUS软件,通过子程序实现热源模型并进行加载,建立了12.7 mm厚6061-T6铝合金板的搅拌摩擦焊温度场数值模型。数值模拟结果与实验结果的对比表明:基于粘着摩擦和混合滑动摩擦与粘着摩擦的模型能较好地预测温度场,两者给出的焊接稳态温度场基本一致,而基于滑动摩擦的模型预测的温度场偏高。通过改变模型参数的取值,系统地研究了边界条件、预热时间、焊接参数、搅拌头结构尺寸对温度场、产热功率和搅拌头所受力矩的影响,得到一系列规律和指标。
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出版历程
  • 收稿日期:  2015-06-24
  • 刊出日期:  2017-01-16

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