| 未熔透熔池液面三维形态的数值模拟 |
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| 引用本文： | 何景山,杨春利,林三宝,王其隆.未熔透熔池液面三维形态的数值模拟[J].焊接学报,2001,22(4):9-12. |
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| 作者姓名： | 何景山 杨春利 林三宝 王其隆 |
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| 作者单位： | 哈尔滨工业大学 |
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| 摘 要： | 对脉冲TIG焊未熔透型熔池在脉冲峰－基转换期间熔池三维形态变化行为进行了定性的分析，并从力和能量角度建立了未熔透熔池液面形态的数学模型。采用Surface Evolver软件进行了数值模拟，并利用实际试验结果对该模型进行了修正，修正过的未熔透型熔池模型为今后定量、系统地模拟多种条件下未熔透型熔池中各液面的形态规律，以此建立熔池上液面的特征量与熔深的对应关系，这种特征量和对应关系为今后的熔透控制的实现奠定了基础。
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| 关 键 词： | 未熔透熔池 脉冲TIG焊 数值模拟 三维形态 焊接 |
| 文章编号： | 0253-360X(2001)04-09-04 |
| 收稿时间： | 2000/11/16 0:00:00 |
Numerical Simulation of 3D Liquid Surface Shape for Partial Penetrated Weld Pool |
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| HE Jing-shan,YANG Chun-li,LIN San-bao and WANG Qi-long.Numerical Simulation of 3D Liquid Surface Shape for Partial Penetrated Weld Pool[J].Transactions of The China Welding Institution,2001,22(4):9-12. |
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| Authors: | HE Jing-shan YANG Chun-li LIN San-bao and WANG Qi-long |
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| Affiliation: | National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China,National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China,National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China and National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 150001, China |
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| Abstract: | The qualitative analysis is carried out on the behavior of the partial penetrated weld pool with welding current changing from pulsed peak value to base value during pulsed TIG welding.The mathematical model of the liquid surface shape of partial penetrated weld pool is developed.The numerical simulation process based on this model is finished by Surface Evolver,a FEM simulation software.Both the simulation results and the model are then modified with experimental results.The modified model lays the foundation for systematical and qualitative simulating the principles of liquid surface of partial penetrated weld pool under various kinds of condition,and for obtaining the relationship between feature value of upper liquid surface and depth of weld pool. |
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| Keywords: | partial penetrated weld pool pulsed TIG welding mathematical simulation |
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