| 6061-T6铝合金高速高功率CO_2激光填丝焊接性的研究 |
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| 引用本文： | 翟玉峰,黄坚,李敏,陈洁,杨模聪,赵勇.6061-T6铝合金高速高功率CO_2激光填丝焊接性的研究[J].中国激光,2011(5). |
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| 作者姓名： | 翟玉峰 黄坚 李敏 陈洁 杨模聪 赵勇 |
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| 作者单位： | 上海交通大学上海市激光制造与材料改性重点实验室;上海飞机制造有限公司; |
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| 摘 要： | 为实现6061-T6铝合金薄板的高速高功率CO2激光填丝焊接,选用了ER4043,ER5356两种焊丝进行了焊接性试验。利用鱼骨状试样对两种焊丝的激光焊接铝合金6061-T6的热裂纹敏感性进行了分析;利用金相显微镜、扫描电镜、显微硬度计以及万能材料试验机分析了焊接接头的组织与性能。研究结果表明,与填充ER5356焊丝相比,填充ER4043焊丝的焊接接头热裂纹敏感性较低,焊接速度可达6 m/min。焊缝主要是柱状晶、等轴晶及少量树枝晶,显微硬度在60~80 HV,拉伸强度可达240~262 MPa,弯曲性能良好。
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| 关 键 词： | 激光技术 激光填丝焊接 6061-T6铝合金 高功率激光 焊接性 |
Research on High Speed High Power CO_2 Laser Welding of 6061-T6 Aluminum with Filler Wire |
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| Zhai Yufeng Huang Jian Li Min Chen Jie Yang Mocong Zhao Yong.Research on High Speed High Power CO_2 Laser Welding of 6061-T6 Aluminum with Filler Wire[J].Chinese Journal of Lasers,2011(5). |
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| Authors: | Zhai Yufeng Huang Jian Li Min Chen Jie Yang Mocong Zhao Yong |
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| Affiliation: | Zhai Yufeng1 Huang Jian1 Li Min1 Chen Jie2 Yang Mocong2 Zhao Yong1(1Shanghai Key Laboratory of Laser Processing and Material Modification,Shanghai Jiaotong University,Shanghai 200240,China2Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 200436,China) |
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| Abstract: | In order to realize the high power CO2 laser welding of 6061-T6 aluminum alloy sheet under high travel speed,filler wire ER4043 and ER5356 are selected for welding.In the experiments,welding hot cracking sensitivity is analyzed by use of fishbone samples,and optical microscope,scanning electron microscope,micro-hardness test and mechanical property test are applied to analyze the microstructure and properties of the joints.Results indicate that compared with filling wire ER5356,the hot crack sensibility of ... |
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| Keywords: | laser technique laser wire welding 6061-T6 aluminum alloy high power laser weldability |
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