Simulation and analysis of heat transfer and fluid flow characteristics of variable polarity GTAW process based on a tungsten-arc-specimen coupled model
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- 作者：Jiajing Pan ; Shengsun Hu ; Lijun Yang ; yliabc@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Huan Li
- 关键词：Variable polarity ; GTAW ; Aluminum ; Simulation and analysis ; Heat transfer ; Fluid flow ; Molten pool
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：96
- 期：Complete
- 页码：346-352
- 全文大小：2114 K
文摘
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A coupled tungsten–arc-specimen model was established for variable polarity GTAW process.
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The temperature and fluid flow characteristics of the arc and molten pool were investigated.
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The heat transfer behavior of variable polarity GTAW arc was analyzed.
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The driving force of the molten pool in variable polarity GTAW process was analyzed.