| 激光辅助TIG电弧焊接高强铝合金的研究 |
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| 引用本文： | 冉国伟,宋永伦,林江波,杨晓红. 激光辅助TIG电弧焊接高强铝合金的研究[J]. 电焊机, 2010, 40(11) |
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| 作者姓名： | 冉国伟 宋永伦 林江波 杨晓红 |
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| 作者单位： | 北京工业大学,机电学院,北京,100124 |
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| 基金项目： | 国防基础科研资助项目(K0300020402) |
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| 摘 要： | 采用激光辅助TIG电弧的焊接方法对2014高强铝合金进行了焊接。通过分析焊接过程所采集的电流、电压信号和焊接接头的抗应力腐蚀试验数据,研究了低功率激光对TIG电弧功率和焊接接头性能的影响。结果表明,加入500 W激光后,EN时段电弧两极间的电压下降明显,而EP时段的电压未发生明显改变;TIG电弧的脉冲峰值功率和脉冲基值功率均有较大程度的下降。与TIG焊相比,激光辅助TIG焊的焊缝熔深变大,熔宽变小,焊缝表面更加平整,热影响区变窄,焊缝中心区晶粒有一定的细化,提高了抗应力腐蚀性能。
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| 关 键 词： | 激光 复合焊接 高强铝合金 |
Investigation on laser-assisted TIG arc welding technology with the high strength aluminum alloy |
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| RAN Guo-wei,SONG Yong-lun,LIN Jiang-bo,YANG Xiao-hong. Investigation on laser-assisted TIG arc welding technology with the high strength aluminum alloy[J]. Electric Welding Machine, 2010, 40(11) |
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| Authors: | RAN Guo-wei SONG Yong-lun LIN Jiang-bo YANG Xiao-hong |
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| Affiliation: | RAN Guo-wei,SONG Yong-lun,LIN Jiang-bo,YANG Xiao-hong (Department of Mechanical Engineering & Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | The 2014 high strength aluminum alloy was welded by the laser-assisted TIG arc welding technology.The impacts from low- power laser on the performance of 2014 high strength aluminum alloy welding joints and the TIG arc power were investigated through the analysis of welding current,welding voltage and the resistance to stress corrosion test data.The results showed that the voltage between the anode and cathode would drop significantly at EN (electrode is negative) Period when the 500 W-laser was inserted in... |
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| Keywords: | laser hybrid welding high strength aluminum alloy |
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