| GMAW焊接熔滴过渡模型的研究进展 |
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| 引用本文： | 栗卓新,张征,刘海云. GMAW焊接熔滴过渡模型的研究进展[J]. 中国机械工程, 2007, 18(12): 1501-1504 |
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| 作者姓名： | 栗卓新 张征 刘海云 |
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| 作者单位： | 1. 北京工业大学,北京,100022
2. 北京工业大学,北京,100022;太原理工大学,太原,030024 |
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| 摘 要： | 对实芯焊丝GMAW焊接熔滴过渡数值模型的研究进展进行综述,认为主要熔滴过渡模拟理论为SFBT、PIT和VOF理论。通过对SFBT、PIT、VOF三种理论的比较,认为VOF理论在处理复杂的自由边界形态时比其他方法更适合和更有效,与实验结果更吻合。为提高理论计算与实验结果的一致性,指出VOF理论还需考虑金属蒸发产生的蒸气压力等因素的影响。
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| 关 键 词： | 熔化极气体保护焊 熔滴过渡 数值模拟 流体体积法 |
| 文章编号： | 1004-132X（2007）12-1501-04 |
| 修稿时间： | 2006-05-15 |
Review of GMAW Droplet Transfer Model |
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| Li Zhuoxin,Zhang Zheng,Liu Haiyun. Review of GMAW Droplet Transfer Model[J]. China Mechanical Engineering, 2007, 18(12): 1501-1504 |
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| Authors: | Li Zhuoxin Zhang Zheng Liu Haiyun |
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| Affiliation: | 1. Beijing University of Technology, Beijing, 100022; 2. Taiyuan University of Technology, Taiyuan, 030024 |
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| Abstract: | The GMAW droplet transfer models of solid wire were reviewed. The developing processes of GMAW droplet transfer simulation were briefly summarized, SFBT(static force balance theory), PIT(pinch instability theory), and VOF theory were mainly discussed.The conclusions are that the results predicted by VOF method are more close to the experimental ones compared with that by SFBT and PIT method. Metal vapor pressure or more other factors should be considered for the purpose of improving consistency between computational results and experimental ones. |
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| Keywords: | gas metal arc welding(GMAW) droplet transfer numerical simulation volume of fluid(VOF) method |
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