Force controlled friction riveting of glass fiber reinforced polyamide 6 and aluminum alloy 6056 hybrid joints

Start Page
1905
End Page
1912
Citation
ANTEC 2015 : proceedings of the technical conference & exhibition Orlando, Florida, USA March 23-25, 2015. - Newtown, Conn., 2015. - Pp. 1905-1912
Contribution to Conference
ANTEC 2015 
Scopus ID
2-s2.0-85010660767
Publisher
Society of Plastics Engineers
The use of metal-composite hybrid structures is an efficient solution to reduce weight and fuel consumption in the transportation industry. Some conventional joining techniques for hybrid structures, such as traditional mechanical fastening and adhesive bonding are being used but have shown limitations. The present work intends to demonstrate the feasibility of the FricRiveting process to aluminum alloy 6056-T6 and glass reinforced polyamide 6. Furthermore, the influence of the process parameter Forging Force on the joint formation (changes in the depth and width of the metallic rivet anchoring zone) and tensile strength is studied. Trials were performed with new joining equipment which allowed improved process control. The process was divided into two controlled steps: the first step was controlled by force and limited by displacement; the second step was also controlled by force but limited by time. The correlation between the rivet deformation (volumetric ratio) and the tensile strength was studied, as well as presumptive physical-chemical changes in the polymer (thermo-mechanical degradation) due to the high temperatures achieved in the process. The maximum average ultimate tensile strength for the selected conditions was 5041± 170 N (95% ± 3% of the ultimate tensile force of the metallic rivet) and the polymer did not show any significant level of thermomechanical degradation.
DDC Class
620: Ingenieurwissenschaften