中国机械工程

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拉锻式摩擦塞焊的热力耦合解析模型和试验验证

陈永亮1; 杨子超1;林恒利1;崔雷2;宋建岭3;王东坡2   

  1. 1.天津大学机械工程学院,天津,300350
    2. 天津大学材料科学与工程学院,天津,300350
    3.天津航天长征火箭制造有限公司,天津,300451
  • 出版日期:2020-09-10 发布日期:2020-09-30
  • 基金资助:
    国家自然科学基金资助项目(51775370)

Analytical Model of Thermo-mechanics Coupling and Experimental Verification for Friction Pull Plug Welding

CHEN Yongliang1;YANG Zichao1;LIN Hengli1;CUI Lei2;SONG Jianling3;WANG Dongpo2   

  1. 1. School of Mechanical Engineering, Tianjin University, Tianjin, 300350
    2. School of Materials Science and Engineering, Tianjin University, Tianjin, 300350
    3. Tianjin Changzheng Rocket Manufacturing Co., Ltd., Tianjin, 300451
  • Online:2020-09-10 Published:2020-09-30

摘要: 为快速得到拉锻式摩擦塞焊的焊接工艺参数,对焊接过程进行预测,建立了摩擦塞焊过程的扭矩、轴向力、功率和能量等指标的力学模型和热力耦合解析模型。模型的输入量为焊接塞棒的几何参数、材料属性、焊接转速和进给速度,输出量为焊接过程的扭矩、轴向力、功率和能量等。在自主设计的拉锻式摩擦塞焊设备上进行了焊接试验。通过将试验数据的输入和输出指标与理论模型值进行对比分析,验证了理论解析模型的可行性。

关键词: 拉锻式摩擦塞焊, 力学模型, 热力耦合分析, 铝合金

Abstract: In order to quickly obtain welding parameters of FPPW and predict welding processes, mechanics models and thermo-mechanics coupling analytical models of FPPW processes containing indicators such as torque, axial force, power, and energy were established. Inputs of this model were geometric parameters, material properties, welding speed, and feed speed of plug rod, and outputs were torque, axial force, power, and energy of welding processes. Welding tests were carried out on self-designed FPPW equipment. Feasibility of the analytical models was verified by comparing the inputs and outputs of welding data with the theoretical model.

Key words: friction pull plug welding(FPPW), mechanics model, thermo-mechanics coupling analysis, aluminum alloy

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