| 铝合金交流脉冲双面弧焊工艺试验及特点分析 |
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| 引用本文： | 董红刚,吴林,高洪明. 铝合金交流脉冲双面弧焊工艺试验及特点分析[J]. 焊接学报, 2005, 26(11): 55-58 |
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| 作者姓名： | 董红刚 吴林 高洪明 |
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| 作者单位： | 大连理工大学,材料工程系,辽宁,大连,116024;哈尔滨工业大学,现代焊接生产技术国家重点实验室,哈尔滨,150001 |
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| 基金项目： | 国防科技重点实验室基金资助项目（51471050103ZS6103）;高等学校重点实验室访问学者基金资助项目 |
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| 摘 要： | 通过工艺试验，详细分析了LYl2CZ铝合金板交流脉冲等离子弧（PA）-钨极氩弧（GTA）双面弧焊（DSAW）的工艺特点。通过与常规钨极氩弧焊和等离子弧焊工艺比较，发现该工艺可以显著增加熔深，减小焊后热变形，提高焊接生产效率。分别采用多孔喷嘴和单孔喷嘴进行了对比试验，其中采用多孔喷嘴能够有效防止双弧的产生，采用单孔喷嘴能够获得较大熔深。当采用小孔型交流脉冲双面弧焊工艺焊接铝合金时，由于小孔的存在，焊接过程中阴极雾化效果降低，影响焊缝成形及质量。
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| 关 键 词： | 铝合金 等离子弧(PA) 双面弧焊 小孔 |
| 文章编号： | 0253-360X（2005）11-55-04 |
| 收稿时间： | 2005-05-28 |
| 修稿时间： | 2005-05-28 |
Experimental characteristic analyses of pulsed AC double-sided arc welding process on aluminum alloy |
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| DONG Hong-gang,WU Lin and GAO Hong-ming. Experimental characteristic analyses of pulsed AC double-sided arc welding process on aluminum alloy[J]. Transactions of The China Welding Institution, 2005, 26(11): 55-58 |
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| Authors: | DONG Hong-gang WU Lin GAO Hong-ming |
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| Affiliation: | Laboratory of Special Processing of Raw Materials, Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China and State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The experimental characteristics of pulsed alternating current plasma arc ( PA ) - gas tungsten arc ( GTA) double-sided arc welding process on LY12CZ aluminum alloy were analyzed in detail. Experimental results showed that, compared with regular GTAW and PAW process, the pulse AC PA-GTA double-sided arc welding process can remarkably increase the weld penetration, minish heat distortion and improve the weld efficiency. Plentiful experiments with multi-nozzle and single nozzle showed that double arc on the plasma arc torch can be prevented effectively with multi-nozzle, and deeper penetration can be reached with single nozzle. Arc cleaning action effect falls after the keyhole was established during keyhole pulsed AC PA-GTA double-sided arc welding process on aluminum alloy, which influences, the shape and quality of the weld. |
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| Keywords: | aluminum alloy plasma arc (PA) double-sided arc welding keyhole |
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