多波环形激光器密封钉焊接工艺优化
Optimization of Multi-Wave Annular Laser Sealing Stud Welding Process
- 2024年54卷第5期 页码:65-70
纸质出版日期: 2024-05-25
DOI: 10.7512/j.issn.1001-2303.2024.05.09
扫 描 看 全 文
浏览全部资源
扫码关注微信
纸质出版日期: 2024-05-25 ,
扫 描 看 全 文
罗又辉,李永慧,刘建强,等.多波环形激光器密封钉焊接工艺优化[J].电焊机,2024,54(5):65-70.
LUO Youhui, LI Yonghui, LIU Jianqiang, et al.Optimization of Multi-Wave Annular Laser Sealing Stud Welding Process[J].Electric Welding Machine, 2024, 54(5): 65-70.
随着新能源汽车行业的发展,对动力电池焊接质量提出了更高要求。为解决铝合金电池密封钉采用传统激光焊接时出现的裂纹、气孔等缺陷问题,并提高生产效率,采用自主研发的多波环形光斑光纤激光器对2 mm厚的3003铝合金盖板和0.95 mm厚的密封钉进行焊接,研究了在一定焊接速度下内外环焊接功率、离焦量等主要工艺参数对焊缝成形的影响。试验结果表明,在40 mm/s焊接速度下,光纤(内环)功率500 W,半导体(外环)功率1 700 W,离焦量1.5 mm时,焊缝熔深达0.6 mm,熔宽1.2 mm,此时焊接效果最优,焊缝各位置熔深一致性高,焊接飞溅极小且无炸点、气孔、裂纹等缺陷。通过样品焊接试验,验证了该焊接工艺的稳定性和可靠性。
To address the issues of cracks and pores in aluminum alloy battery sealing nails during traditional laser welding processes and to enhance production efficiency
we employed a self-developed multi-wavelength ring fiber laser to weld 2 mm thick 3003 aluminum alloy cover plates and 0.95 mm thick sealing nails. The study investigated the impact of key process parameters such as inner and outer ring welding power and defocusing amount on the weld formation at a constant welding speed. The experimental results show that at a welding speed of 40 mm/s
with an optical fiber (inner ring) power of 500 W
a semiconductor (outer ring) power of 1 700 W
and a defocusing amount of +1.5 mm
the weld penetration reached 0.6 mm
and the weld width was 1.2 mm
resulting in the optimal welding effect. At this point
the consistency of the melt depth at various positions of the weld was high
with minimal welding spatter and no explosion points
pores
or cracks. Furthermore
actual sample welding tests demonstrated the stability and reliability of the welding process.
环形光斑激光器密封钉焊接激光焊接离焦量熔深熔宽
multi-wavelength ring lasersealing nail weldinglaser weldingdefocusing amountweld depthweld width
Li J. Charging Chinese future: the roadmap of China’s policy for new energy automotive industry[J]. International Journal of Hydrogen Energy, 2020, 45(20): 11409-11423.
Yeung G. ‘Made in China 2025’: the development of a new energy vehicle industry in China[J]. Area Development and Policy, 2019, 4(1): 39-59.
胡大武,张桂源,曹鹏程,等. 新能源汽车电池包关键连接技术[J]. 金属加工:热加工,2020(8):10-13.
HU D W,ZHANG G Y,CAO P C,et al. New energy vehicle battery pack key connection technology[J]. MW Hot Working, 2020(8):10-13.
张健,张卫,张庆茂,等. 动力电池外壳的激光自动化焊接技术研究[J]. 应用激光,2013, 33(2):173-176.
ZHANG J,ZHANG W,ZHANG Q M,et al. Study on Laser Automatic Welding Technology of Power Battery shell [J]. Applied Laser, 2013, 33(2):173-176.
许为柏. 动力电池外壳激光高速焊接工艺[J]. 电焊机,2014, 44(1): 84-86.
XU W B. Study on high-speed laser welding process of battery case [J]. Electric Welding Machine, 2014, 44(1): 84-86.
李庆,张春杰,黄展鹏,等. 锂离子动力电池铝壳激光焊分析[J]. 焊接技术,2020, 49(2): 44-47.
LI Q,ZHANGC J,HUANG Z P,et al. Study on the fiber laser welding of Al case for Li-ion power battery [J]. Welding Technology, 2020, 49(2): 44-47.
李林贺,邓适. 动力电池壳体激光焊接工艺[J]. 焊接技术,2013, 42(7): 30-32.
LI L H,DENG S. Laser welding technology of power battery case[J]. Welding Technology, 2013, 42(7): 30-32.
Ion J C. Laser beam welding of wrought aluminium alloys[J]. Science and Technology of Welding and Joining, 2000,5(5):265-276.
Cao X,Wallace W,Poon C,et al. Research and Progress in Laser Welding of Wrought Aluminum Alloys. I. Laser Welding Processes[J]. Materials and Manufacturing Processes, 2003,18(1):1-22.
朱宝华,胡学安. 光纤激光器在锂电池焊接中的应用[J]. 焊接技术,2014, 43(9): 47-50.
ZHU B H,HU X A. Application of fiber laser in lithium battery welding[J]. Welding Technology,2014,43(9):47-50.
付秀. 激光焊接技术在小微电子行业的应用[J]. 现代职业教育,2020, 47:162-163.
FU X. Application of laser welding technology in small microelectronics industry[J]. Modern Vocational Education, 2020, 47:162-163.
孟宣宣,王春明,胡席远. 光纤激光焊接熔池和小孔的高速摄像与分析[J]. 电焊机,2010,40(11):78-81.
MENG X X,WANG C M,HU X Y. High-speed photograph and the analysis of the welding pool and keyhole in fiber laser welding[J]. Electric Welding Machine, 2010, 40(11): 78-81.
王程昊,张本顺,赵昀,等. 基于响应面法的6013铝合金单模光纤激光焊接工艺及性能研究[J]. 电焊机, 2021,51(10):94-101.
WANG C H,ZHANG B S,ZHAO Y,et al. Research on single-mode fiber laser welding of 6013 aluminum alloy based on response surface method and the microstructure properties[J]. Electric Welding Machine,2021,51(10):94-101.
李庆,李志彬,黄展鹏,等. 锂离子电池外壳光纤激光焊气孔的分析[J]. 焊接技术,2017, 46(2): 73-75.
LI Q,LI Z B,HUANG Z P,et al. Study on the porosity of fiber laser welding for casing of Li-ion battery[J]. Welding Technology,2017,46(2):73-75.
编辑部网址:http://www.71dhj.comhttp://www.71dhj.com
相关作者
相关机构