A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry

The introduction of adhesive bonding in the automotive industry is one of the key enabling technologies for the production of aluminium closures and all-aluminium car body structures. One of the main concerns limiting the use of adhesive joints is the durability of these system when exposed to servi...

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Main Authors: Francesca Cavezza, Matthieu Boehm, Herman Terryn, Tom Hauffman
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/6/730
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author Francesca Cavezza
Matthieu Boehm
Herman Terryn
Tom Hauffman
author_facet Francesca Cavezza
Matthieu Boehm
Herman Terryn
Tom Hauffman
author_sort Francesca Cavezza
collection DOAJ
description The introduction of adhesive bonding in the automotive industry is one of the key enabling technologies for the production of aluminium closures and all-aluminium car body structures. One of the main concerns limiting the use of adhesive joints is the durability of these system when exposed to service conditions. The present article primarily focuses on the different research works carried out for studying the effect of water, corrosive ions and external stresses on the performances of adhesively bonded joint structures. Water or moisture can affect the system by both modifying the adhesive properties or, more importantly, by causing failure at the substrate/adhesive interface. Ionic species can lead to the initiation and propagation of filiform corrosion and applied stresses can accelerate the detrimental effect of water or corrosion. Moreover, in this review the steps which the metal undergoes before being joined are described. It is shown how the metal preparation has an important role in the durability of the system, as it modifies the chemistry of the substrate’s top layer. In fact, from the adhesion theories discussed, it is seen how physical and chemical bonding, and in particular acid-base interactions, are fundamental in assuring a good substrate/adhesive adhesion.
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spelling doaj.art-8e526ca83e3c4b3b810e6c25fbe8c3002023-11-20T02:26:50ZengMDPI AGMetals2075-47012020-06-0110673010.3390/met10060730A Review on Adhesively Bonded Aluminium Joints in the Automotive IndustryFrancesca Cavezza0Matthieu Boehm1Herman Terryn2Tom Hauffman3Department of Materials and Chemistry, Research Group Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, BelgiumConstellium Technology Center, 725 rue Aristide Bergès, Centr’Alp, 38341 Voreppe, FranceDepartment of Materials and Chemistry, Research Group Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, BelgiumDepartment of Materials and Chemistry, Research Group Electrochemical and Surface Engineering (SURF), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, BelgiumThe introduction of adhesive bonding in the automotive industry is one of the key enabling technologies for the production of aluminium closures and all-aluminium car body structures. One of the main concerns limiting the use of adhesive joints is the durability of these system when exposed to service conditions. The present article primarily focuses on the different research works carried out for studying the effect of water, corrosive ions and external stresses on the performances of adhesively bonded joint structures. Water or moisture can affect the system by both modifying the adhesive properties or, more importantly, by causing failure at the substrate/adhesive interface. Ionic species can lead to the initiation and propagation of filiform corrosion and applied stresses can accelerate the detrimental effect of water or corrosion. Moreover, in this review the steps which the metal undergoes before being joined are described. It is shown how the metal preparation has an important role in the durability of the system, as it modifies the chemistry of the substrate’s top layer. In fact, from the adhesion theories discussed, it is seen how physical and chemical bonding, and in particular acid-base interactions, are fundamental in assuring a good substrate/adhesive adhesion.https://www.mdpi.com/2075-4701/10/6/730adhesive jointsaluminiumautomotiveepoxyadhesionjoint durability
spellingShingle Francesca Cavezza
Matthieu Boehm
Herman Terryn
Tom Hauffman
A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
Metals
adhesive joints
aluminium
automotive
epoxy
adhesion
joint durability
title A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
title_full A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
title_fullStr A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
title_full_unstemmed A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
title_short A Review on Adhesively Bonded Aluminium Joints in the Automotive Industry
title_sort review on adhesively bonded aluminium joints in the automotive industry
topic adhesive joints
aluminium
automotive
epoxy
adhesion
joint durability
url https://www.mdpi.com/2075-4701/10/6/730
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