Study on stability of laser double arc hybrid welding process based on LLE

WANG Yao; ZHANG Jieqi; GU Xiaoyan

doi:10.7510/jgjs.issn.1001-3806.2022.04.016

LASER TECHNOLOGY > 2022 > 46(4): 538-544. > DOI: 10.7510/jgjs.issn.1001-3806.2022.04.016

WANG Yao, ZHANG Jieqi, GU Xiaoyan. Study on stability of laser double arc hybrid welding process based on LLE[J]. LASER TECHNOLOGY, 2022, 46(4): 538-544. DOI: 10.7510/jgjs.issn.1001-3806.2022.04.016

Citation:

PDF (6729 KB)

Study on stability of laser double arc hybrid welding process based on LLE

1.
Department of Material Engineering, Shanxi Institute Of Mechanical & Electrical Engineering, Changzhi 046000, China
2.
School of Mechanical Engineering, Jiujiang Vocational and Technical College, Jiujiang 332100, China
3.
School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

More Information

Received Date: May 31, 2021
Revised Date: August 05, 2021
Published Date: July 24, 2022

Graphical Abstract

Abstract

Abstract

In order to obtain a stable laser double arc hybrid welding process, the space reconstruction technique was used to calculate the largest Lyapunov exponent(LLE) of the characteristic current in the welding process with different wire spacing. The theoretical analysis and experimental verification experiments were carried out. LLE and its standard deviation data of the welding current with different wire spacing were obtained, When the laser was located in the center of two arcs, LLE was less than 0.61 and the distance was 3mm~9mm, the heat source coupling was good and the welding process was stable. When the welding wire spacing was 7mm, the weld surface was smooth and the penetration was the largest. LLE can be used as the criterion of welding stability, and it was in good agreement with the observation results of electric signal, arc shape and droplet transfer. This result was helpful to ensure the stability and safety of welding process.

FullText(HTML)

References (22)

References

[1]	WANG H Y, SUN J, LIU L M. Formation and control mechanism of pores in laser-TIG hybrid welding of 6061-T6 aluminum alloy at high speed[J]. Chinese Journal of Lasers, 2018, 45 (3): 0302001(in Chinese). DOI: 10.3788/CJL201845.0302001
[2]	LUO Zh, SHAN P, GAO Zh J, et al. Chaos characteristics of electrode displacement signals in spot welding process based on Lyapunov exponent. Transactions of The China Welding Institution, 2006, 27(12): 34-37(in Chinese).
[3]	CAO B, LV X Q, ZENG M, et al. Lyapunov exponent analysis of short circuit arc in GMAW[J]. Materials Science and Technology, 2007, 15(3): 301-304(in Chinese).
[4]	LV X Q, CAO B, ZENG M, et al. Correlation dimension analysis of short circuit transferred arc[J]. Transactions of the China Welding Institution, 2005, 26(6): 65-68(in Chinese).
[5]	HE K F, LI Q, CHEN J. An arc stability evaluation approach for SW AC SAW based on Lyapunov exponent of welding current[J]. Measurement, 2013, 46(1): 272-278. DOI: 10.1016/j.measurement.2012.06.014
[6]	SONG X H, JIN X Zh, CHEN Sh Q, et al. Progress of laser-arc hybrid welding and its applications in automotive body manufacture[J]. Laser Technology, 2015, 39(2): 259-265(in Chinese).
[7]	GUO Y B, WANG B, WANG G D, et al. Research progress and development trend of welding robot[J]. Modern Manufacturing Engineering, 2021(5): 53-63(in Chinese).
[8]	LEI Zh, XU L, XU F J, et al. Typical applications and research status of laser-arc hybrid welding technology[J]. Welding & Joining, 2018(12): 1-6 (in Chinese).
[9]	HU L H, HUANG J, WU Y X, et al. Study on coupling mechanism and metal transfer in laser double-wire MIG arc hybrid welding[J]. Chinese Journal of Lasers, 2016, 43(6): 0602005 (in Chinese). DOI: 10.3788/CJL201643.0602005
[10]	CHEN G Y, HE J, ZHONG P X, et al. Study on the porosity control during laser welding of glass[J]. Laser Technology, 2021, 45 (3): 286-291(in Chinese).
[11]	WEN P, LI Zh X, ZHANG S, et al. Investigation on porosity, microstructures and performances of 6A01-T5 aluminum alloy joint by oscillating fiber laser-CMT hybrid welding[J]. Chinese Journal of Lasers, 2020, 47(8): 0802003 (in Chinese). DOI: 10.3788/CJL202047.0802003
[12]	GAO J, CHEN Sh M, WANG K H, et al. Research on the influence of laser power on laser-MIG hybird weld forming[J]. Laser Technology, 2020, 44(2): 178-182(in Chinese).
[13]	HUANG R Sh, YANG Y Ch, JIANG B, et al. Analysis of welding characteristics of ultra-high power laser-arc hybrid welding[J]. Transactions of the China Welding Institution, 2019, 40(12): 73-77(in Chinese).
[14]	ZHANG Y L, LIU J, SHI Y, et al. Effect of current/voltage matching on stability of laser-arc hybrid welding process for aluminum alloy[J]. Transactions of the China Welding Institution, 2018, 39 (1): 79-83 (in Chinese).
[15]	REN W J, ZHENG H J, LI Zh G, et al. Effects of pulse arc on droplet transfer and spatter of laser pulsed-arc hybrid welding[J]. Chinese Journal of Lasers, 2020, 47(4): 0402007 (in Chinese). DOI: 10.3788/CJL202047.0402007
[16]	KAWAN C. Exponential state estimation, entropy and Lyapunov exponents[J]. Systems and Control Letters, 2018, 113: 78-85. DOI: 10.1016/j.sysconle.2018.01.011
[17]	BAUMANN M, LEINE R I. Synchronization-based estimation of the maximal Lyapunov exponent of nonsmooth systems[J]. Procedia IUTAM, 2017, 20: 26-33. DOI: 10.1016/j.piutam.2017.03.005
[18]	WU X Y, XU J X, GAO X S, et al. Numerical simulation of thermal process and fluid flow field in laser-MIG hybrid weld pools[J]. Chinese Journal of Lasers, 2019, 46(9): 0902003(in Chinese). DOI: 10.3788/CJL201946.0902003
[19]	CHENG Y M, LIANG X M, ZOU J P, et al. Laser-MIG arc hybrid welding of aluminum alloy[J]. Welding & Joining, 2017 (11): 6-9(in Chinese).
[20]	XU Ch Y, LIU Sh Y, ZHANG H, et al. Study on the characteristics and mechanics of droplet transfer in laser arc hybrid welding process[J]. Journal of Mechanical Engineering, 2018, 54(6): 154-161(in Chinese). DOI: 10.3901/JME.2018.06.154
[21]	LI F K. Study on characteristics and droplet transfer behavior of laser MIG arc pulse hybrid welding [D]. Harbin: Harbin Institute of Technology, 2019: 45-52(in Chinese).
[22]	HU L H, HUANG J, WU Y X, et al. Study on coupling mechanism and metal transfer in laser double-wire MIG arc hybrid welding[J]. Chinese Journal of Lasers, 2016, 43(6): 0602005(in Chinese). DOI: 10.3788/CJL201643.0602005

Cited By

Cited by

Periodical cited type(3)

1.	李小来，杨世强，姚俊，方春华，沈彪，张曼. 基于激光点云数据的输电线路高压电塔提取方法研究. 电工材料. 2025(01): 70-73 .
2.	朱赞，姚钘，王建琦，李阳，龙诗科. 三维激光扫描技术应用于机翼微变形检测. 测绘通报. 2023(05): 115-119 .
3.	黄俊达，许柔娜，唐思瑶. 基于矢量化电力线的架空线路树障快速分析方法. 南方能源建设. 2023(06): 146-152 .

Other cited types(1)

Get Citation

PDF

XML

Article views (8) PDF downloads (6) Cited by(4)

Turn off MathJax

Article Contents

Abstract

References

Study on stability of laser double arc hybrid welding process based on LLE

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(1)

Catalog

Links：

Study on stability of laser double arc hybrid welding process based on LLE

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(1)

Catalog

Links：

Export File

Citation

Format

Content