纳秒激光清洗5083铝合金阳极氧化膜试验研究
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摘要
5083铝合金表面极易形成微米级阳极氧化膜,显著影响其焊接质量。实验采用波长1 064 nm的纳秒光纤激光器对5083铝合金表面的阳极氧化膜进行激光清洗试验研究。采用不同激光清洗工艺参数,研究激光功率、扫描速度和脉宽对激光清洗效果的影响,总结了优化的激光参数组合,并验证此参数组合对应的清洗效果。研究表明,激光清洗5083铝合金表面阳极氧化膜优化的激光清洗参数组合为功率P=42 W,扫描速度V=4 725 mm/s,频率f=250 kHz,脉宽T=100 ns。扫描电镜结果显示,阳极氧化膜可得到完全剥离,清洗效果好。
It is easy to form micron-level anodic oxide film on the surface of 5083 aluminum alloy, which could significantly affect the afterwards welding quality. Laser cleaning of anodic oxide film on 5083 aluminum alloy surface is studied by using nanosecond fiber laser under the wavelength of 1 064 nm. The effects of laser power, scanning speed and pulse width on the laser cleaning effect were studied by using different laser cleaning process parameters. The optimized laser parameters combination was summarized and the corresponding cleaning effect was verified. The results show that there is an optimized combination of laser processing parameters. And the optimized laser power, scanning speed, frequency and pulse width are 42 W, 4 725 mm/s, 250 kHz and 100 ns, respectively. SEM results indicate the anodic oxide film could be fully removed, thus achieving good cleaning effect.
It is easy to form micron-level anodic oxide film on the surface of 5083 aluminum alloy, which could significantly affect the afterwards welding quality. Laser cleaning of anodic oxide film on 5083 aluminum alloy surface is studied by using nanosecond fiber laser under the wavelength of 1 064 nm. The effects of laser power, scanning speed and pulse width on the laser cleaning effect were studied by using different laser cleaning process parameters. The optimized laser parameters combination was summarized and the corresponding cleaning effect was verified. The results show that there is an optimized combination of laser processing parameters. And the optimized laser power, scanning speed, frequency and pulse width are 42 W, 4 725 mm/s, 250 kHz and 100 ns, respectively. SEM results indicate the anodic oxide film could be fully removed, thus achieving good cleaning effect.
引文
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[17] TONG YANQUN,ZHANG ANG,HUANG JIANYU,et al.Distribution and influence of oxygen content in laser pretreatment of aluminum alloy before welding[J].Chinese Journal of Lasers, :1-15. 佟艳群,张昂,黄建宇,等.铝合金焊前激光预处理的氧含量分布及影响[J].中国激光,2018:1-15.
[2] CHEN CHENG,XUE SONGBAI,SUNHUHAO,et al.Microstructure and mechanical properties of 5083 aluminum alloy joint by TIG welding[J].Transactions of the China Welding Institution,2014,35(1):37-40+114-115. 陈澄,薛松柏,孙乎浩,等.5083铝合金TIG焊接头组织与性能分析[J].焊接学报,2014,35(1):37-40+114-115.
[3] XIAO R S, DENG S S,MATSUNAWA A,et al.Laser beam welding of aluminum alloys[C]//Proceedings of SPIE,2007(6825):1-10.
[4] XIONG JINPING,ZHAO YIGE,ZHOU YONG,et al.Research progress of removal for oxide films on aluminum alloy[J].Plating & Finishing,2013,35(11):15-19. 熊金平,赵艺阁,周勇,等.铝合金表面氧化膜去除方法研究进展[J].电镀与精饰,2013,35(11):15-19.
[5] WANG HAIJIANG,LIU WEIWEI,YU YUE,et al.Research status and prospect of laser cleaning of metal surface contamination[J].Internal Combustion Engine & Parts,2016(8):75-78. 王海将,刘伟嵬,余跃,等.金属表面污染物的激光清洗研究现状与展望[J].内燃机与配件,2016(8):75-78.
[6] LEI ZHENGLONG,TIAN ZE,CHEN YANBIN.Research status and prospect on laser cleaning technology in the field of industry[J].Laser & Optoelectronics Progress,2018,55(3):54-66. 雷正龙,田泽,陈彦宾.工业领域激光清洗研究现状综述与展望[J].激光与光电子学进展,2018,55(3):54-66.
[7] KEARNS A,FISCHER C,WATKINS K G,et al.Laser removal of oxides from a copper substrate using Q-switched Nd:YAG radiation at 1 064 nm, 532 nm and 266 nm[J].Applied Surface Science,1998(127-129):773-780.
[8] TONG YANQUN.Study on mechanism and application fundamentals of laser removal of metal oxides[D].Zhenjiang:Jiangsu University,2014. 佟艳群.激光去除金属氧化物的机理与应用基础研究[D].镇江:江苏大学,2014.
[9] MEJA P,AUTRIC M,DELAPORTE P,et al.Dry laser cleaning of anodized aluminium[J].Applied Physics A,1999,69(S1):343-346.
[10] NI JIAMING,ZHU XUNQIANG,XU AIJIE,et al.Research on laser cleaning process for aluminum alloy anodic oxide film[J].Hot Working Technology,2017,46(16):164-167. 倪加明,朱迅强,徐爱杰,等.铝合金阳极氧化膜激光清洗工艺研究[J].热加工工艺,2017,46(16):164-167.
[11] LUO YA,WANG XUAN,ZHAO HUIFENG,et al.Effect of laser cleaning on the surface morphology and welding performance of 2219 aluminum alloy[J].Applied Laser,2017,37(4):544-549. 罗雅,王璇,赵慧峰,等.激光清洗对2219铝合金表面形貌及焊接性能的影响[J].应用激光,2017,37(4):544-549.
[12] XIA PEIYUN,YIN YUHUAN,CAI AIJUN,et al.Study on mechanism and process of laser cleaning of anodic oxide film of 2219 Al-alloy before welding[J].Chinese Journal of Lasers,2018,46(1):102005-1. 夏佩云,尹玉环,蔡爱军,等.2219铝合金阳极氧化膜焊前激光清洗工艺机理研究[J].中国激光,2018,46(1):102005-1.
[13] LI LIN.Laser cleaning prior to laser welding of aluminum alloys[J].Industrial Laser Solutions,2015.
[14] WANG Q,GUAN Y C,CONG B Q,et al.Laser cleaning of commercial Al alloy surface for tungsten inert gas welding[J].Journal of Laser Applications,2016,28(2):022507.
[15] CHEN YIMING,ZHOU LONGZAO,YAN FEI,et al.Mechanism and quality evaluation of laser cleaning of aluminum alloy[J].Chinese Journal of Lasers,2017,44(12):87-94. 陈一鸣,周龙早,闫飞,等.铝合金激光清洗机理与质量评估[J].中国激光,2017,44(12):87-94.
[16] ZHANG F D,LIU H,SUBKA C,et al.Corrosion behavior of laser-cleaned AA7024 aluminum alloy[J].Applied Surface Science,2018(435):452-461.
[17] TONG YANQUN,ZHANG ANG,HUANG JIANYU,et al.Distribution and influence of oxygen content in laser pretreatment of aluminum alloy before welding[J].Chinese Journal of Lasers, :1-15. 佟艳群,张昂,黄建宇,等.铝合金焊前激光预处理的氧含量分布及影响[J].中国激光,2018:1-15.