Reference : Influence of Aluminum Laser Ablation on Interfacial Thermal Transfer and Joint Qualit...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/10993/41415
Influence of Aluminum Laser Ablation on Interfacial Thermal Transfer and Joint Quality of Laser Welded Aluminum–Polyamide Assemblies
English
Al Sayyad, Adham mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Bardon, Julien [Luxembourg Institute of Science & Technology - LIST > Materials Research and Technology (MRT)]
Hirchenhahn, Pierre [University of Namur > Namur Institute of Structured Materials (NISM), LISE laboratory]
Vaudémont, Regis [Luxembourg Institute of Science & Technology - LIST > Materials Research and Technology (MRT)]
Houssiau, Laurent [University of Namur > Namur Institute of Structured Materials (NISM), LISE laboratory]
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
19-Nov-2019
Coatings
MDPI
9
11
Surface Treatment by Laser-Assisted Techniques
Yes
International
[en] laser welding ; metal–polymer ; laser ablation ; thermal contact resistance
[en] Laser assisted metal–polymer joining (LAMP) is a novel assembly process for the development of hybrid lightweight products with customized properties. It was already demonstrated that laser ablation of aluminum alloy Al1050 (Al) prior to joining with polyamide 6.6 (PA) has significant influence on the joint quality, manifested in the joint area. However, profound understanding of the factors affecting the joint quality was missing. This work investigates the effects of laser ablation on the surface properties of Al, discusses their corresponding impact on the interfacial thermal transfer between the joining partners, and evaluates their effects on the joint quality. Samples ablated with different parameters, resulting in a range from low- to high-quality joints, were selected, and their surface properties were analyzed by using 2D profilometry, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX). In order to analyze the effects of laser ablation parameters on the interfacial thermal transfer between metal and polymer, a model two-layered system was analyzed, using laser flash analysis (LFA), and the thermal contact resistance (TCR) was quantified. Results indicate a strong influence of laser-ablation parameters on the surface structural and morphological properties, influencing the thermal transfer during the laser welding process, thus affecting the joint quality and its resistance to shear load.
Fonds National de la Recherche - FnR ; DGO6
Laser STAMP
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/10993/41415
https://www.mdpi.com/2079-6412/9/11/768
FnR ; FNR10861142 > Peter Plapper > LaserSTAMP > Laser and Surface Treatment Assisted Metal Polymer assembly > 01/09/2016 > 31/08/2019 > 2016

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