| 基于ANSYS的钛合金电子束焊缝形貌预测及验证 |
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| 引用本文： | 肖攀,苗志飞,钱勇,龚建,李建一.基于ANSYS的钛合金电子束焊缝形貌预测及验证[J].机械制造文摘:焊接分册,2011(5):27-32. |
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| 作者姓名： | 肖攀 苗志飞 钱勇 龚建 李建一 |
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| 作者单位： | [1]北京航空航天大学机械工程及自动化学院,北京100191 [2]渤海石油装备南京巨龙钢管有限公司,江苏南京210061 [3]渤海石油华油钢管有限公司,河北沧州062650 |
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| 摘 要： | 采用ANSYS有限元分析软件，建立了3mm厚TCA钛合金平板电子束焊接温度场的三维有限元数值计算模型，选取双椭球体热源模型作为热输入，考虑材料热物理性能参数随温度的变化，通过计算得到焊缝中心线上及附近各点的热循环曲线、熔池及焊缝截面形貌，并估算了焊缝宽度和热影响区宽度。最后用实验加以验证。通过对比分析，模拟和实验结果相吻合，证明有限元模型的准确性。
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| 关 键 词： | 电子束焊接 数值模拟 温度场 焊缝形貌 |
Prediction and verification of weld profile in electron beam welding of titanium alloy based on ANSYS |
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| Authors: | Xiao Pan Miao Zhifei Qian Yong Gong Jian Li Jianyi |
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| Affiliation: | 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China ; 2. Nanjing Julong Steel Pipe Co. , Ltd. , CNPC Bohai Equipment Manufacturing Co. , Nanjing 210061, China; 3. Huayou Steel Pipe Co. , Ltd. , CNPC Bohai Equipment Manufacturing Co. , Cangzhou 062650, China) |
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| Abstract: | A three-dimensional finite element model of calculating electron beam welding temperature field for 3 mm-thickness TCA titanium alloy plate was developed with ANSYS software. The double ellipsoid heat source model was selected as the heat in- put, the temperature-dependent thermal and mechanical properties of the materials were considered, and the heat cycle of the points on and near the center line of the weld and the cross-section profile of the weld pool and bead were calculated. The width of the fu- sion zone and the heat-affected zone were also estimated. The experimental results are in agreement with the numerical results, which proves the validity of the finite element model. |
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| Keywords: | electron beam welding numerical simulation temperature field weld profile |
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