| 基于旋转GAUSS曲面体热源模型的激光焊接热过程的数值模拟 |
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| 引用本文： | 张瑞华,片山聖二,内藤恭章,樊丁. 基于旋转GAUSS曲面体热源模型的激光焊接热过程的数值模拟[J]. 电焊机, 2007, 37(5): 51-54 |
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| 作者姓名： | 张瑞华 片山聖二 内藤恭章 樊丁 |
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| 作者单位： | 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,甘肃,兰州,730050;大阪大学,接合科学研究所,大阪,567-0047,日本 |
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| 基金项目： | 教育部春晖计划项目 , 高等学校博士学科点专项科研项目 |
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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.采用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,得到了激光深熔焊接时的温度场分布规律和"钉头"状的熔池形状,数值模拟结果与实验结果基本吻合.
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| 关 键 词： | 激光焊接 旋转GAUSS曲面体 PHOENICS |
| 文章编号： | 1001-2303(2007)05-0051-04 |
| 修稿时间： | 2006-07-01 |
Numerical simulation of the laser welding by using the Rotary-Gauss body heat source model |
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| ZHANG Rui-hua,SEIJI Katayama,NAITOU Yasuaki,FAN Ding. Numerical simulation of the laser welding by using the Rotary-Gauss body heat source model[J]. Electric Welding Machine, 2007, 37(5): 51-54 |
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| Authors: | ZHANG Rui-hua SEIJI Katayama NAITOU Yasuaki FAN Ding |
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| Affiliation: | 1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou Univeisity of Technology,Lanzhou 730050, China; 2.J WRI, Osaka University, 11-1 Mihogaoka, Ibaraki, 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.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 simulation results show that the shape of molten pool looks like"nailhead"shape.It's provided good agree with the practice welding results. |
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| Keywords: | laser welding Rotary-Gauss body heat source PHOENICS |
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