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Research and development of new methods of self-piercing riveting joints

Published online by Cambridge University Press:  14 November 2025

M. Soylak
Affiliation:
Department of Airframes and Powerplants, Faculty of Aeronautics and Astronautics, Erciyes University , Kayseri, Türkiye
M. Aydin
Affiliation:
Department of Aeronautical Engineering, Faculty of Aeronautics and Astronautics, Erciyes University, Kayseri, Türkiye
V. Erturun*
Affiliation:
Department of Airframes and Powerplants, Faculty of Aeronautics and Astronautics, Erciyes University , Kayseri, Türkiye
*
Corresponding author: Veysel Erturun; Email: erturun@erciyes.edu.tr

Abstract

In this study, self-piercing riveting (SPR) connection, which is one of the joining techniques of aluminum alloys, is investigated. SPR is a cold mechanical joining process used to join two or more sheets of material by pushing the rivet that pierces the upper sheet under the guidance of a suitable mold and then locking it to the lower sheet. The SPR process was carried out with the split Hopkinson pressure par test system. The bar inside the cylinder, accelerated by pressure, performs the riveting process by hitting the surface of the mold developed for SPR. In this study, different numbers of slots were opened on the rivet tail, and the process was carried out using SPRs at different deformation rates. A powerful tomography scanner device designed for 3D metrology was used to visualise the SPR joining mechanisms without cutting. Tensile-shear tests were applied to the samples made with rivets with different numbers of slots and different pressures, and cross-tension tests were also applied to the samples prepared with rivets with different numbers of slots. The opened slots caused a decrease in the maximum strength of the samples. It was understood that the appropriate riveting pressure could change the connection strength by approximately 50%. In general, the force values decreased as the number of slots increased.

Information

Type
Research Article
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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