| 工艺参数对铝合金双脉冲MIG焊焊缝成形的影响 |
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| 引用本文： | 姚屏,薛家祥,蒙万俊,朱思君.工艺参数对铝合金双脉冲MIG焊焊缝成形的影响[J].焊接学报,2009,30(3):69-72. |
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| 作者姓名： | 姚屏 薛家祥 蒙万俊 朱思君 |
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| 作者单位： | 1. 华南理工大学,机械与汽车工程学院,广州,510640;广东技术师范学院,机电学院,广州,510635
2. 华南理工大学,机械与汽车工程学院,广州,510640 |
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| 基金项目： | 国家自然科学基金，广东省科技计划基金 |
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| 摘 要： | 双脉冲MIG焊在进行高效铝焊接的同时可获得美观的鱼鳞纹焊缝表面.在单脉冲稳定焊接的基础上,针对自行开发的双脉冲MIG焊逆变电源,分别改变电流、高频频率、低频频率、焊接速度,进行双脉冲焊接铝合金的试验研究.结果表明,强弱脉冲峰值电流和高频频率对焊接过程的稳定性和飞溅有较大的影响,强弱脉冲峰值电流相差40 A,高频频率250 Hz时焊缝成形好.在一定范围内,焊缝鱼鳞纹宽度与低频频率、焊接速度直接相关.具体而言,焊缝鱼鳞纹宽度随着低频频率的提高而减小,随着焊接速度的提高而增大,并根据统计规律得出了一个经验公式,用以定量反映这种变动关系.当焊接速度与低频频率比值为0.19～0.30时,鱼鳞纹宽度在2～3 mm之间,焊接效果较好.
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| 关 键 词： | 双脉冲焊 高频频率 低频频率 焊接速度 鱼鳞纹宽度 |
| 收稿时间： | 2008/10/10 0:00:00 |
Influence of processing parameters on weld forming in double-pulse MIG welding of aluminum alloy |
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| YAO Ping,XUE Jiaxiang,MENG Wanjun and ZHU Sijun.Influence of processing parameters on weld forming in double-pulse MIG welding of aluminum alloy[J].Transactions of The China Welding Institution,2009,30(3):69-72. |
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| Authors: | YAO Ping XUE Jiaxiang MENG Wanjun and ZHU Sijun |
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| Affiliation: | 1.South China University of Technology;Guangzhou 510640;China;2.Guangdong Polytechnic Normal University;Guangzhou 510635;China |
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| Abstract: | Double-pulse MIG welding of aluminum alloy can improve the efficiency of welding and meanwhile get beautiful weld surface with scaly figures.Based on single-pulse welding,the experiments of double-pulse MIG welding of aluminum alloy were carried out by changing the current,high-frequency,low-frequency and welding velocity of the power which is the self-developed double-pulse MIG welding inverter power.Tests shows that strong/weak pulse peak current and high-frequency have great influence on the stability of... |
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| Keywords: | double-pulse MIG welding high-frequency low-frequency welding velocity width of the scaly figure |
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