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6061铝合金超声波点焊温度场数值模拟及试验

李玉龙, 刘达繁, 茶映鹏

李玉龙, 刘达繁, 茶映鹏. 6061铝合金超声波点焊温度场数值模拟及试验[J]. 焊接学报, 2017, 38(4): 13-16. DOI: 10.12073/j.hjxb.20170403
引用本文: 李玉龙, 刘达繁, 茶映鹏. 6061铝合金超声波点焊温度场数值模拟及试验[J]. 焊接学报, 2017, 38(4): 13-16. DOI: 10.12073/j.hjxb.20170403
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LI Yulong, LIU Dafan, CHA Yingpeng. Simulation and experiments of ultrasonic welding temperature field of 6061 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 13-16. DOI: 10.12073/j.hjxb.20170403
Citation: LI Yulong, LIU Dafan, CHA Yingpeng. Simulation and experiments of ultrasonic welding temperature field of 6061 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 13-16. DOI: 10.12073/j.hjxb.20170403
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6061铝合金超声波点焊温度场数值模拟及试验

  • 1.

    南昌大学 机电工程学院江西省机器人及焊接自动化重点试验室, 南昌 330031

  • 2.

    江西五十铃发动机有限公司, 南昌 330200

基金项目: 教育部留学回国人员科研启动基金；江西省自然科学基金资助项目（20132BAB206024）

Simulation and experiments of ultrasonic welding temperature field of 6061 aluminum alloy

  • 1.

    Key Lab for Robot & Welding Automation of Jiangxi Province, Mechanical & Electrical Engineering School, Nanchang University, Nanchang 330031, China

  • 2.

    Jiangxi Isuzu Motors Co., Ltd, Nanchang 330200, China

摘要

    摘要
  • 摘要: 针对超声波焊接过程中温度演化过程监测存在的困难，考虑焊接过程中塑性变形产热和高频摩擦产热，建立了三维超声波焊接热-结构耦合Ansys有限元模型，模拟了6061铝合金超声波金属焊接过程，计算了不同焊接参数下的温度场，用细丝热电偶测温试验验证了焊接温度.结果表明，焊接过程中焊接区域最高温度模拟值与试验值误差在5%以内，表明了模型的准确性；温度最高处位于焊接区域中心位置，高温区随焊接时间的增大而增大；超声波金属焊接过程中，温度场主要受焊接压力及焊接时间的影响.
    Abstract: An attempt in situ monitor temperature evolution during the ultrasonic welding process within a few hundred milliseconds, a 3D thermal-mechanical coupling finite model in ANSYS software was established. In this study, the ultrasonic welding process of 6061 aluminum alloys was analyzed, the temperature fields of different welding parameters were simulated, and the associated welding temperature was tested by using fine-wire thermocouples. The results show that the accuracy of the finite model was verified for the highest temperature errors between the experimental values and the simulated values were within 5%, the highest temperature regions located in the central region of welding zone and the area of the highest temperature regions enlarged as the welding time increased, and the temperature fields were mainly effected by the welding pressure and time.
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  • 收稿日期:  2015-01-05

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