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2A14铝合金直流A-TIG焊接技术

张聃,尹玉环,孙耀华,吴伟,曲文卿

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. DOI: 10.12073/j.hjxb.2018390255
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. DOI: 10.12073/j.hjxb.2018390255
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ZHANG Dan, YIN Yuhuan, SUN Yaohua, 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. DOI: 10.12073/j.hjxb.2018390255
Citation: ZHANG Dan, YIN Yuhuan, SUN Yaohua, 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. DOI: 10.12073/j.hjxb.2018390255
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2A14铝合金直流A-TIG焊接技术

Analysis of direct current A-TIG welding of 2A14 aluminum alloy

摘要

    摘要
  • 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.
    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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    • 参考文献(12)
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  • 收稿日期:  2017-04-15

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