| 深熔激光焊接熔池温度场的数值模拟 |
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| 引用本文： | 张瑞华,;陈磊,;樊丁,;片山聖二.深熔激光焊接熔池温度场的数值模拟[J].中国科技论文在线,2008(4):268-272. |
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| 作者姓名： | 张瑞华 ;陈磊 ;樊丁 ;片山聖二 |
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| 作者单位： | [1]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]大阪大学,日本大阪567-0047 |
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| 基金项目： | 甘肃省自然科学基金（0710RJZA064） |
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| 摘 要： | 利用旋转GAUSS曲面体新型热源模型,忽略深熔激光焊时小孔对传热的影响,建立了移动激光热源作用下的三维数学模型。利用PHOENICS3.4软件,模拟了SUS304不锈钢深熔激光焊接热过程的温度场和熔池熔合线形状,得到了不同焊接速度下的温度场分布云图和＂钉头＂状的熔池形状,试验表明数值模拟结果与试验结果基本吻合。
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| 关 键 词： | 激光焊接 旋转GAUSS曲面体 PHOENICS软件 |
Numerical simulation of heat process of the laser welding |
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| Institution: | ZHANG Ruihua CHEN Lei FAN Ding SEIJI Katayama(1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou 730050;2.Osaka University,Osaka,567-0047,Japan) |
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| Abstract: | A mathematical model to describe moving laser welding was developed by using the Rotary-Gauss body heat source model and neglecting the effect of keyhole on thermal conduct.Numerical simulation was conducted by PHOENICS 3.4 software package.The model was applied to laser welding processing of SUS 304 stainless steel. The shape of molten pool and the temperature field were analyzed.The shape of molten pool looks like ＂nailhead＂ shape.The simulation results of molten pool shape provided a good agreement with the practice welding results. |
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| Keywords: | laser welding Rotary-Gauss body heat source PHOENICS |
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