| METALS AND METAL MATRIX COMPOSITES |
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| Effects of Sonotrode Geometry on Welding Temperature Field and Plastic Deformation in Cu/Al High-power Ultrasonic Welding |
| LI Huan1,*, ZHANG Jian1, WU Shiying2, LIU Qianxi1
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1 School of Mechanical Engineering, Yangtze University, Jingzhou 434023, Hubei, China
2 School of Mechanical and Electronics, Guangzhou Railway Polytechnic, Guangzhou 510430, China |
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Abstract The geometry of the sonotrode tip is an important parameter of ultrasonic welding, but the influence of the welding head geometry on the wel-ding process is insufficient currently. A three-dimensional sound-thermal-mechanical field coupling model was established using the finite element method. The influence of tooth spacing and angle on interface temperature, interface plastic deformation and microstructures, and sonotrode downward displacement during Cu/Al high power ultrasonic welding was mainly investigated. The results showed that when the spacing of the sonotrode tooth was 0.9 mm, the joint was well formed without obvious defects, and the higher interface temperature promoted the growth of the intermetallic compound. When the spacing of the tooth was 0.8 mm or 1.0 mm, the plastic strain of the material below the edge of the sonotrode was significantly higher, resulting in the production and expansion of the crack. As the sonotrode teeth angle increased from 108° to 135°, the interface temperature decreased from 471.9 ℃ to 456.3 ℃, the sonotrode displacement decreased from 0.344 mm to 0.304 mm, and the maximum plastic strain of specimens sharply decreased from 0.94 to 0.63. This research should provide a theoretical reference of optimizing the welding geometry.
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Published: 25 March 2025
Online: 2025-03-24
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1 Li H, Zhang C X, Ao S S, et al. Rare Metal Materials and Engineering, 2022, 51(12), 4624 (in Chinese).
李欢, 张长鑫, 敖三三, 等. 稀有金属材料与工程, 2022, 51(12), 4624.
2 Meng Q, Che Q Y, Wang K S, et al. Materials Reports, 2019, 33(12), 2030 (in Chinese).
孟强, 车倩颖, 王快社, 等. 材料导报, 2019, 33(12), 2030.
3 Ni Z L, Yang J J, Gao Z T, et al. Journal of Manufacturing Processes, 2020, 50(2), 57.
4 Gu X Y, Liu D F, Liu J. ISIJ International, 2018, 58(9), 1721.
5 Wu X, Liu T, Cai W. Journal of Manufacturing Processes, 2015, 20(10), 321.
6 Ji H J, Wang J Z, Li M Y. Journal of Materials Processing Technology, 2014, 214(2), 175.
7 Das S, Satpathy M P, Pattanaik A, et al. Materials and Manufacturing Processes, 2019, 34(15), 1689.
8 Jahn R, Cooper R, Wilkosz D. Metallurgical and Materials Transactions A, 2007, 38(3), 570.
9 Komiyama K, Sasaki T, Watanabe Y. Journal of Materials Processing Technology, 2016, 229(3), 714.
10 Lee D, Cai W. Journal of Manufacturing Processes, 2017, 28(8), 428.
11 Li H, Cao B, Liu J, et al. International Journal of Advanced Manufacturing Technology, 2018, 97(1-4), 833.
12 Li H, Cao B, Yang J W, et al. Transactions of the China Welding Insititution, 2017, 38(8), 5 (in Chinese).
李欢, 曹彪, 杨景卫, 等. 焊接学报, 2017, 38(8), 5.
13 Chen K K, Zhang Y S. Materials ＆ Design, 2015, 87(12), 393. |
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2025, Vol. 39 
