Aircraft have been manufactured for decades using a wide variety of welding and joining techniques. There have been signiﬁcant developments in techniques over the last 15–20 years.
In civil aeronautical industry the main materials used for the fuselage and structural parts are aluminium alloys. In order to reduce weight, leading to a better fuel and economic efficiency, there is the need to find innovative solutions to join aluminium components in a single lap joint (SLJ) configuration with higher strength to weight ratio than riveting and fastening. In this work, a combination of the friction stir welding (FSW) and adhesive bonding (AB) processes is presented. Quasi-static mechanical properties, fatigue behaviour and other properties of the friction stir weld-bonding joints were assessed and compared with adhesive only and friction stir welded only joints.
The development of this new joining technology, the combination of FSW with AB, forming friction stir weld-bonding, aims to incorporate properties and characteristics of both joining technologies, as well as improving damage tolerance.
The present research involved the production of two types of overlap joints - FSW and hybrid friction stir weld-bonding. The main objective of this study is to compare the different joining technologies in lap joint conﬁguration and evaluate the inﬂuence of different parameters on the mechanical behavior of the joints.
The hybrid joints present better overall results, and the best joint was efﬁciency achieved with the hybrid joint produced with 450 kgf. The average efﬁciency value in this case was 73.75%, however in a particular specimen it reached the value of 85.21%. From the results it is possible to afﬁrm that the hybridization process confers an improvement between 20-30 % in most cases.
How to Cite
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.
Open Access Statement
Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.
F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.