| METALS AND METAL MATRIX COMPOSITES |
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| Study of Droplet Transfer and Fluctuation of Weld Pool for Flux Bands Constricting Arc Welding of Sandwich Plates |
| QIAO Jisen1,2,*, YANG Yuanzhuang1,2, WANG Lei1,2, GAO Zhenyun1,2, FENG Rui1,2
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1 School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2 State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China |
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Abstract Since it is always a challenge to detect the instability of weld pool during flux bands constricting arc welding process (FBCA) for high-strength steel sandwich plates, a new test by means of a side sticking high-temperature quartz glass has been used to collect the information of wel-ding process on line, which was driven to extract the edge curve of weld pool and its geometrical parameters. In addition that, a research has been carried out about the droplet transfer modes and the fluctuation of the edge curve of weld pool dynamically. Meanwhile the relationship between the oscillation angle of the weld pool and the welding stability was also analyzed. The results show that there are at least six different modes of droplet transfer with various welding parameters, which are short circuiting transfer, globular transfer, repulsion transfer, fine transfer, projected transfer, and arc bridge coexistence transfer. Their influence on the weld pool fluctuation in the core plate is weakened in a sequence. Along with the changing of the oscillation angle of the weld pool, the edge curve of weld pool shows specially the mixed U-shape, the deep U-shape and the shallow U-shape as well, and the stability of burning arc increases in a sequence. Especially, when the metal transfer is arc bridge coexistence, the weld pool shows a shallow U-shape. In this way, the arc will burn stably with homologous electromagnetic forces attached, and the welding process will be good for qualified joint mechanical properties following.
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Published:
Online: 2023-02-08
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| Fund:National Natural Science Foundation of China (51665033). |
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Corresponding Authors:
qiaojisen@lut.cn
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1 Meng W, Li Z, Huang J, et al. International Journal of Advanced Manufacturing Technology, 2013, 69(5-8), 1105.
2 Wang L, Qiao J, Chen J. Materials, 2020, 13(7), 1652.
3 Wang L, Qiao J, Chen J, et al. Journal of Manufacturing Processes, 2020, 54, 190.
4 Chen Z W, Wang L, Qiao J S, et al. Transaction of the China Welding Institution, 2019, 40(12), 83 (in Chinese).
陈振文, 王磊, 乔及森, 等. 焊接学报, 2019, 40(12), 83.
5 Qiao J S, Rui Z L, Materials Reports B:Research Papers, 2020, 34(11), 22142 (in Chinese).
乔及森, 芮正雷, 王磊, 等. 材料导报:研究篇, 2020, 34(11), 22142.
6 Wu C S. Welding thermal processes weld pool behaviors, China Machine Press, China, 2008, pp.120 (in Chinese).
武传松. 焊接热过程与熔池形态, 机械工业出版社, 2008, pp. 120.
7 Han G M, Yun S H, Cao X H, et al. Materials and Design, 2003, 24(8), 699.
8 Praveen P, Kang M J, Yarlagadda P K D V. Journal of Achievements in Materials and Manufacturing Engineering, 2009, 32(2), 196.
9 Pal K, Bhattacharya S, Pal S K. Journal of Materials Processing Technology, 2010, 210(10), 1397.
10 Wu C S, Meng X M, Chen J, et al. Journal of Mechanical Engineering, 2018, 54(2), 1 (in Chinese).
武传松, 孟祥萌, 陈姬, 等. 机械工程学报, 2018, 54(2), 1.
11 Wang D M, Gao J Q, Wu C S, et al. Transactions of the China Welding Institution, 2008(10), 85 (in Chinese).
王德民, 高进强, 武传松, 等. 焊接学报, 2008(10), 85.
12 Chen T, Xue S B, Zhai P Z, et al. Materials Reports B:Research Papers, 2019, 33(8), 2734. (in Chinese).
陈涛, 薛松柏, 翟培卓, 等. 材料导报:研究篇, 2019, 33(8), 2734. |
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2023, Vol. 37 
