| 钛合金薄板激光焊接和TIG焊接残余应力数值模拟 |
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| 引用本文： | 何小东,张建勋,裴怡,巩水利.钛合金薄板激光焊接和TIG焊接残余应力数值模拟[J].机械工程材料,2005,29(3):25-28. |
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| 作者姓名： | 何小东 张建勋 裴怡 巩水利 |
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| 作者单位： | 1. 西安交通大学材料科学与工程学院,陕西,西安,710049
2. 北京航空制造工程研究所,北京,100024 |
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| 基金项目： | 高能束流加工技术国防科技重点实验室基金资助项目(51461010203JW0801) |
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| 摘 要： | 基于有限元分析软件ANSYS，以激光焊接和TIG焊接温度场模拟为基础，对钛合金薄板的焊接残余应力进行了数值模拟，并分析了不同焊接工艺参数对激光焊接和TIG焊接残余应力分布的影响。数值模拟中考虑了材料参数的温度相关性，并与小孔释放法测试的焊接残余应力进行比较，结果表明：计算结果和测试结果吻合较好。
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| 关 键 词： | 钛合金 激光焊接 TIG焊接 焊接残余应力 |
| 文章编号： | 1000-3738(2005)03-0025-04 |
Numerical Simulation of the Residual Stress in Laser Beam Welded and TIG Welded Joints of Thin Plate of Titanium Alloy |
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| HE Xiao-dong,ZHANG Jian-xun,PEI Yi,GONG Shui-li.Numerical Simulation of the Residual Stress in Laser Beam Welded and TIG Welded Joints of Thin Plate of Titanium Alloy[J].Materials For Mechanical Engineering,2005,29(3):25-28. |
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| Authors: | HE Xiao-dong ZHANG Jian-xun PEI Yi GONG Shui-li |
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| Abstract: | The laser beam welding and TIG welding residual stresses in thin plates of titanium alloy were investigated by means of two-dimensional finite element model, making use of the ANSYS software. The effects of different welding parameters on the distribution of residual stress were analyzed numerically. The temperature dependent material properties were taken into account in the analysis. Experiments were carried out to measure the distributions of residual stresses in laser welded and TIG welded joints by hole-drilling method and to verify the FE approach. The calculated values are in good agreement with experimental measurements. |
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| Keywords: | titanium alloy laser beam welding TIG welding weld residual stress |
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