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异厚度铝合金薄板激光拼焊温度场数值模拟

余淑荣, 熊进辉, 樊丁, 陈剑虹

余淑荣, 熊进辉, 樊丁, 陈剑虹. 异厚度铝合金薄板激光拼焊温度场数值模拟[J]. 焊接学报, 2007, (5): 17-20.
引用本文: 余淑荣, 熊进辉, 樊丁, 陈剑虹. 异厚度铝合金薄板激光拼焊温度场数值模拟[J]. 焊接学报, 2007, (5): 17-20.
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YU Shurong, XIONG Jinhui, FAN Ding, CHEN Jianhong. Numerical simulation on temperature field in laser welding of thin aluminum alloy plate with different thickness[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (5): 17-20.
Citation: YU Shurong, XIONG Jinhui, FAN Ding, CHEN Jianhong. Numerical simulation on temperature field in laser welding of thin aluminum alloy plate with different thickness[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (5): 17-20.
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异厚度铝合金薄板激光拼焊温度场数值模拟

  • 1.

    兰州理工大学有色金属合金及加工教育部重点实验室, 兰州 730050;兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室, 兰州 730050

  • 2.

    兰州理工大学有色金属合金及加工教育部重点实验室, 兰州 730050

基金项目: 国家重大项目前期预研项目(2004CCA04900);教育部"春晖计划"基金资助项目(Z2004-1-62008);甘肃省自然基金资助项目(3ZS041-A25-031)

Numerical simulation on temperature field in laser welding of thin aluminum alloy plate with different thickness

  • 1.

    Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

摘要

    摘要
  • 摘要: 利用ANSYS软件对异厚度铝合金激光拼焊的温度场进行三维瞬态有限元分析。为了提高计算精度和效率,采用过渡网格划分形式划分网格以保证焊缝处网格足够细小。选取高斯函数分布的热源模型,利用ANSYS软件的APDL语言编写程序实现移动热源的加载。在模拟中既考虑一般激光焊接中材料热物理性能参数的温度相关性、熔化潜热、边界条件、等离子体、熔池对流、保护气体等对温度场的影响,又考虑异厚度铝合金激光拼焊的特性。利用高温热电偶检测异厚度铝合金激光拼焊过程中的温度场,将模拟值与实测值进行对比分析,结果表明,模拟值与实测值吻合良好。
    Abstract: By using ANSYS, the 3D temperature field of laser welding for aluminum alloy of different thickness were simulated. In order to improve solution accuracy and efficiency, transition mesh and Gauss function heat source model were used, and APDL in ANSYS was used to compile program to realize the load of moving heat source.The effects of temperature-dependence material parameters and potential heat, boundary conditions, plasma, convection in molten pool and characteristics of different thickness were considered in the model.Using high-temperature thermocouple, the temperature was measured.It is shown that the simulation results are in accordance with the experimental results.
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出版历程
  • 收稿日期:  2006-06-01

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