| 2A14铝合金直流A-TIG焊接技术 |
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| 引用本文： | 张聃,尹玉环,孙耀华,吴伟,曲文卿.2A14铝合金直流A-TIG焊接技术[J].焊接学报,2018,39(10):93-97. |
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| 作者姓名： | 张聃 尹玉环 孙耀华 吴伟 曲文卿 |
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| 摘 要： | 依据某型号的铝合金焊接构件对焊后表面的高平面度要求，自主研制活性剂，实现2A14铝合金的直流A-TIG焊接. 并通过直流A-TIG焊缝的表面成形、X射线、微观组织观察及力学性能等方面开展2A14铝合金直流A-TIG焊接技术研究. 结果表明，当活性剂浓度为15%时可以获得表面成形、内部质量及力学性能良好的2A14铝合金直流A-TIG焊缝；与交流TIG焊相比，焊缝力学性能略高，微观气孔数量明显降低.
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| 关 键 词： | 直流A-TIG|2A14铝合金|活性剂|微气孔 |
| 收稿时间： | 2017/4/16 0:00:00 |
Analysis of direct current A-TIG welding of 2A14 aluminum alloy |
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| ZHANG Dan,YIN Yuhuan,SUN Yaohu,WU Wei,QU Wenqing.Analysis of direct current A-TIG welding of 2A14 aluminum alloy[J].Transactions of The China Welding Institution,2018,39(10):93-97. |
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| Authors: | ZHANG Dan YIN Yuhuan SUN Yaohu WU Wei QU Wenqing |
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| Abstract: | According to the high flatness requirement of a specific aluminum component, the direct current activating TIG welding (DC A-TIG) has been realized by using a self-developed activating flux. The appearance, internal qualities, microstructures and mechanical properties of the DC A-TIG welds have been studied. The results indicate that when the activating flux concentration is 15%, a 2A14 DC A-TIG weld with good appearance, internal quality and mechanical property can be obtained. Comparing to the alternating current TIG (AC TIG) welds, the mechanical properties of the DC A-TIG welds are a little higher and the number of the micro porosities decreases dramatically. |
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| Keywords: | direct current activating TIG welding|2A14 aluminum alloy|activating flux|micro porosity |
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