| 外加纵向磁场惰性气体保护钨极电弧焊接熔池流动模型 |
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| 引用本文： | 罗键,贾昌申,王雅生,薛锦.外加纵向磁场惰性气体保护钨极电弧焊接熔池流动模型[J].上海交通大学学报,2001,35(5):660-663. |
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| 作者姓名： | 罗键 贾昌申 王雅生 薛锦 |
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| 作者单位： | 1. 上海交通大学焊接工程研究所,
2. 西安交通大学焊接研究所, |
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| 基金项目： | 国家自然科学基金(59775059)；中国博士后科研基金资助项目 |
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| 摘 要： | 在惰性气体保护钨极电弧焊接（GTAW）过程中，引入纵向磁场焊接，它是以LD10CS铝合金炙焊接材料，水冷紫铜板为阳极，实验用探针法测定外加纵向磁场GTAW焊接电弧电流密度的径向分布，。并在此基础上用磁流函数法详细推导了外加纵向磁场GTAW焊接熔池流体所有体积力的表达式，建立了外加纵向磁场作用下焊接熔池流体流动和传热过程的新模型，该模型考虑了外加纵向磁场的附加作用，使之更能接近外加纵向磁场GTAW焊接的实际，为外中纵向磁场GTAW焊接机理的研究提供了条件。
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| 关 键 词： | 惰性气体保护钨极电弧焊 纵向磁场 焊接熔池 数学模型 |
| 文章编号： | 1006-2467(2001)05-0660-04 |
| 修稿时间： | 2000年7月3日 |
Model of Body Force in Electromagnetic Stirring Gas Tungsten-Arc Welding |
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| LUO Jian ,JIA Chang shen ,WANG Ya sheng ,XUE Jin.Model of Body Force in Electromagnetic Stirring Gas Tungsten-Arc Welding[J].Journal of Shanghai Jiaotong University,2001,35(5):660-663. |
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| Authors: | LUO Jian JIA Chang shen WANG Ya sheng XUE Jin |
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| Institution: | LUO Jian 1,JIA Chang shen 2,WANG Ya sheng 2,XUE Jin 2 |
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| Abstract: | On the basis of measuring gas tungsten arc welding (GTAW) the arc electrical current density distribution with a probe method, the new expression of body force and model of LD10CS aluminum alloy weld pool were put forward in GTAW with additional longitudinal magnetic field controlling. The model considers the transient nature of the EMS system, surface tension forces and heating transfer between arc and weld pool of EMS, the combined effect of additional longitudinal magnetic and welding self electromagnetic field. The proposed model is quite comprehensive and more correct than the common weld pool models for this EMS welding. |
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| Keywords: | gas tungsten arc welding (GTAW) longitudinal magnetic weld pool mathematical model |
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