| AZ31镁合金A-TIG焊的研究 |
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| 引用本文： | 徐杰%刘子利%沈以赴%刘仕福.AZ31镁合金A-TIG焊的研究[J].宇航材料工艺,2006,36(6):42-45. |
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| 作者姓名： | 徐杰%刘子利%沈以赴%刘仕福 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院,南京,210016 |
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| 基金项目： | 南京航空航天大学校科研和教改项目 |
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| 摘 要： | 针对AZ31镁合金，研究了在A—TIG焊中单一成分的活性剂和涂敷量对焊缝成形的影响。结果表明，与无活性剂的焊缝相比，活性剂TiO2、SiO2、Cr2O3、CdCl2和CaCl2能够有效地增加镁合金焊缝的熔深和深宽比。但涂敷有氟化物的镁合金焊缝熔深没有增加，涂敷CaF2的焊缝甚至出现开裂现象。在AZ31镁合金的焊接中，活性剂CdCl2的效果最好。
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| 关 键 词： | A-TIG焊 熔深 深宽比 |
| 收稿时间： | 2005-09-05 |
| 修稿时间： | 2005-09-05 |
A -TIG Welding of AZ31 Magnesium Alloy |
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| Xu Jie,Liu Zili,Shen Yifu,Liu Shifu.A -TIG Welding of AZ31 Magnesium Alloy[J].Aerospace Materials & Technology,2006,36(6):42-45. |
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| Authors: | Xu Jie Liu Zili Shen Yifu Liu Shifu |
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| Institution: | College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 |
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| Abstract: | The effect of activating fluxes with single component on weld forming during the A -TIG welding of AZ31 magnesium alloy is studied in this paper. The experimental results show that, compared with weld made without flux, the weld bead penetration and weld depth to width ratio are greatly increased after applying flux TiO2 ,SiO2, Cr2O3, CdC12 and CaCl2 for magnesium alloy. However, the flux fluoride is not useful for the weld penetration, and weld coated with flux CaF2 is cracked. As for the AZ31 magnesium alloy, the effect of flux CdCl2 is the best. |
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| Keywords: | AZ31 |
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