| 激光填丝钎焊温度场数值模拟仿真研究 |
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| 引用本文： | 王昌,周忠锋. 激光填丝钎焊温度场数值模拟仿真研究[J]. 激光与红外, 2021, 51(6): 742-746 |
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| 作者姓名： | 王昌 周忠锋 |
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| 作者单位： | 内蒙古科技大学机械工程学院,内蒙古 包头014010 |
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| 基金项目： | 内蒙古自然科学基金项目(No.2018LH05028)资助。 |
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| 摘 要： | 为提高车身顶板和侧板之间激光填丝钎焊的质量,研究钎焊热传导规律,建立了镀锌钢板卷边对接模型、CuSi3为钎料进行数值模拟仿真分析,考虑材料热物理属性、相变潜热以及热对流等问题的前提下采用双椭球激光热源模型进行热分析.探究了激光填丝钎焊温度随时间的变化规律,不同区域对温度的敏感程度以及不同功率下焊接熔池的温度场分布,为激...
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| 关 键 词： | 激光钎焊 卷边对接 温度场 数值模拟 |
| 修稿时间： | 2020-09-28 |
Numerical simulation study on temperaturefield of laser filler wire brazing |
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| WANG Chang,ZHOU Zhong-feng. Numerical simulation study on temperaturefield of laser filler wire brazing[J]. Laser & Infrared, 2021, 51(6): 742-746 |
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| Authors: | WANG Chang ZHOU Zhong-feng |
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| Affiliation: | School of Mechanical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China |
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| Abstract: | In order to improve the quality of laser filler wire brazing between the top and side panels of the car body,the heat conduction law of brazing was studied,and a butt joint model of galvanized steel sheet was established.CuSi3 was used as the brazing filler metal for numerical simulation analysis.Under the premise of variable latent heat and thermal convection,the double ellipsoid laser heat source model is used for thermal analysis.The law of the temperature of laser wire filler brazing over time has been explored,the sensitivity of different regions to temperature and the temperature field distribution of the weld pool under different powers are explored,providing a theoretical model for laser wire filler brazing and further exploration of brazing formation quality has a driving effect. |
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