Numerical analysis model of temperature field in swing-arc narrow gap GMAW

被引：0
|
作者：
Xu G. [1 ]
Pan H. [1 ]
Wang J. [1 ]
机构：
[1] Key Laboratory of Advanced Welding Technology of Jiangsu Province, Jiangsu University of Science and Technology, Zhenjiang
来源：
Wang, Jiayou (zj_jiayouw@126.com) | 1600年 / Harbin Research Institute of Welding卷 / 38期
关键词：
Heat source model; Numerical simulation; Swing arc narrow gap welding; Temperature field;
D O I：
10.12073/j.hjxb.20151210001
中图分类号：
学科分类号：
摘要：
Based on macro thermal transfer theory and geometric feature of weld cross section, the heat source model for swing-arc narrow gap GMAW is developed after considering the influence of arc swing, geometric feature of welded joint and weld surface shape on arc heat flux distribution. By using ANSYS software, the transient temperature profile and thermal cycle curve in swing arc narrow gap GMAW are calculated and their distribution features are analyzed. The results show that the established heat source model can reflect the moving path of swing arc and its thermal action feature and the calculated geometry and size of weld cross section agree well with the experimental data, validating the accuracy of the developed model. At 300A welding current and 2 Hz swing frequency, the weld pool changes limitedly. © 2017, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
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页码：55 / 60
页数：5
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