Strength of copper joints obtained by ultrasonic welding using copper intermediate layers in different structure states

N.Y. Parkhimovich, N.R. Yusupova, A.A. Nazarov show affiliations and emails
Received: 26 May 2020; Revised: 28 June 2020; Accepted: 30 June 2020
This paper is written in Russian
Citation: N.Y. Parkhimovich, N.R. Yusupova, A.A. Nazarov. Strength of copper joints obtained by ultrasonic welding using copper intermediate layers in different structure states. Lett. Mater., 2020, 10(3) 322-327


Adding an intermediate layer between the surfaces to be welded provides better quality of ultrasonic welding.Characteristics of solid state joints obtained by ultrasonic welding (USW) of commercially pure copper plate samples of 0.5 mm thickness, including samples welded with intermediate layers of commercial and ultrafine-grained (UFG) plates of the same material of 0.2 mm thickness, were studied. Welding regimes with processing times 1 and 2 s and static loads 5 and 7 kN at vibration amplitude about 15 µm were used. For each regime and sample type three samples were obtained and subjected to lap shear testing. Analysis of results has shown that at both values of static load the increase in processing time from 1 to 2 s leads to an increase of the strength of weld joints. While with the small welding duration the increase in the load does not lead to a change of the joint strength, with the longer welding time 2 s a noticeable increase of the joint strength with the static load is observed. For the given thickness of intermediate layers lap shear strength of joint does not depend on their presence and structure: for every sample type welded with the same regime the value of strength is the same within the margin of errors. However, presence of the intermediate layer qualitatively affects the elongation curve during shear testing: samples welded without an intermediate layer fail with practically instant simultaneous separation of joined surfaces after achievement of the maximum stress, whereas at the presence of an intermediate layer after achieving the maximum stress a smooth decrease of the stress occurs. This is related to the deformation of material in the area of joint. There are also differences observed in the macrostructure of sample surfaces in the area of failure after lap shear testing. The absence of the increase of joint strength in the presence of intermediate layers was explained by plastic deformation in the areas of stress concentration.

References (27)

1. Yu. V. Kholopov. Ultrasonic welding of metals and plastics. Leningrad, Mashinostroyeniye (1988) 224 p. (in Russian) [Ю. В. Холопов. Ультразвуковая сварка пластмасс и металлов. Ленинград, Машиностроение (1988) 224 с].
2. A. M. Mitzkevich. In: Physics and Technique of Power Ultrasound. V. III. Physical Bases of Ultrasonic Technology (ed. by L. D. Rosenberg). Moscow, Nauka (1970) p. 71-164. (in Russian) [А. М. Мицкевич. В кн.: Физика и техника мощного ультразвука. Т. III. Физические основы ультразвуковой технологии (под ред. Л. Д. Розенберга). Москва, Наука (1970) с. 71-164].
3. K. Graff. In: New Developments in Advanced Welding (ed. by N. Ahmed). Cambridge, Woodhead Publishing (2005) p. 241 - 269. Crossref
4. M. P. Matheny, K. F. Graff. In: Power Ultrasonics. Applications of High-Intensity Ultrasound (ed. by J. A. Gallego-Juarez, K. F. Graff). Cambridge, Woodhead Publishing (2015) p. 259 - 293.
5. US Patent #6519500, 23.03.2000.
6. R. J. Friel, R. A. Harris. The Seventeenth CIRP Conference on Electro Physical and Chemical Machining (ISEM). Procedia CIRP. 6, 35 (2013). Crossref
7. R. J. Friel. In: Power Ultrasonics. Applications of High-Intensity Ultrasound (ed. by J. A. Gallego-Juarez, K. F. Graff). Cambridge, Woodhead Publishing (2015) p. 313 - 335. Crossref
8. A. Hehr, M. Norfolk. Rapid Prototyphing J. 26 (3), 445 (2019). Crossref
9. E. Mariani, E. Ghassemieh. Acta Mater. 58 (7), 2492 (2010). Crossref
10. P. J. Wolcott, N. Sridharan, S. S. Babu, A. Miriev, N. Frage, M. J. Dapino. Sci. Technol. Weld. Join. 21 (2), 114 (2016). Crossref
11. P. J. Wolcott, A. Hehr, C. Pawlowski, M. J. Dapino. J. Mater. Proc. Technol. 233, 44 (2016). Crossref
12. Z. L. Ni, F. X. Ye. J. Manuf. Technol. 35, 580 (2018). Crossref
13. H. T. Fujii, H. Endo, Y. S. Sato, H. Kokawa. Mater. Charact. 139, 233 (2018). Crossref
14. L. Zhou, J. Min, W. X. He, Y. X. Huang, X. G. Song. J. Manuf. Proc. 33, 64 (2018). Crossref
15. S. Elangovan, K. Prakasan, V. Jaiganesh. Int. J. Adv. Manuf. Technol. 51, 163 (2010). Crossref
16. Z. S. Al Sarraf. J. Appl. Mech. Eng. 4 (5), 1000183 (2015). Crossref
17. J. Yang, B. Cao, Q. Lu. Materials. 10 (2), 193 (2017). Crossref
18. R. Balasundaram, V. K. Patel, S. D. Bholen, D. L. Chen.. Mater. Sci. Eng. A. 607, 277 (2014). Crossref
19. H. M. Zhang, Y. J. Chao, Z. Luo. Sci. Technol. Weld. Join. 22 (1), 79 (2017). Crossref
20. E. V. Valitova, A. Kh. Akhunova, V. A. Valitov, S. V. Dmitriev, R. Ya. Lutfullin, M. Kh. Muhametrahimov. Lett. Mater. 4 (3), 190 (2014). (in Russian) [Э. В. Валитова, А. Х. Ахунова, В. А. Валитов, Р. Я. Лутфуллин, С. В. Дмитриев, М. Х. Мухаметрахимов. Письма о материалах. 4 (3), 190 (2014).]. Crossref
21. M. Kh. Mukhametrakhimov. Lett. Mater. 7 (2), 193 (2017). (in Russian) [М. Х. Мухаметрахимов. Письма о материалах 7 (2), 193 (2017).]. Crossref
22. L. Lu, M. L. Sui, K. Lu. Science. 287 (5457), 1463 (2000). Crossref
23. A. P. Zhilyaev, T. G. Langdon. Progr. Mater. Sci. 53 (6), 893 (2008). Crossref
24. A. P. Zhilyaev, I. Shakhova, A. Belyakov, R. Kaibyshev, T. G. Langdon. J. Mater. Sci. 49 (5), 2270 (2014). Crossref
25. N. Lugo, N. Llorca, J. M. Cabrera, Z. Horita. Mater. Sci. Eng. A. 477 (1- 2), 366 (2008). Crossref
26. R. K. Khisamov, K. S. Nazarov, A. V. Irzhak, R. U. Shayakhmetov, I. I. Musabirov, R. R. Timirayev, Y. M. Yumaguzin, R. R. Mulyukov. Lett. Mater. 9 (2), 212 (2019). Crossref
27. N. V. Dezhkunov. Contactless vibrometer (2020). [Н. В. Дежкунов. Бесконтактный виброметр (2020).]

Similar papers


1. Russian Science Foundation - # 16-19-10126