Influence of the Metal Oxide Layer and Its Surface Pretreatment on the Strength of Adhesive Joints

verfasst von

Sandra Gerland, Finn Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz

Abstract

Surface treatment of substrates prior to the adhesive bonding process plays an important role in improving the mechanical properties and durability of bonded joints. In this context, the replacement of hazardous chemicals and pretreatment processes with safer chemicals and more environmentally friendly technologies is essential. The aim of this study was to investigate the fundamental effects of the type of pretreatment and the metal oxide layer on the tensile strength of bonded joints. To prevent reoxidation after removal of the oxide layer, an oxygen-free atmosphere was generated by doping an inert gas atmosphere with the reactive gas silane. The material used for the experimental studies was aluminum alloy AlMg4.5Mn bonded with epoxy-based adhesive Scotch-Weld DP410. Chemical, mechanical and physical pretreatments were investigated with and without metal oxide layer. The results show that removing the oxide layer enables higher tensile strengths. The type of pretreatment is decisive for the final strength.

Organisationseinheit(en)

Institut für Montagetechnik und Industrierobotik
Institut für Transport- und Automatisierungstechnik

Externe Organisation(en)

Laser Zentrum Hannover e.V. (LZH)

Typ

Beitrag in Buch/Sammelwerk

Seiten

293-300

Anzahl der Seiten

8

Publikationsdatum

22.07.2025

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Sicherheit, Risiko, Zuverlässigkeit und Qualität, Volkswirtschaftslehre, Ökonometrie und Finanzen (sonstige), Wirtschaftsingenieurwesen und Fertigungstechnik

Ziele für nachhaltige Entwicklung

SDG 12 – Verantwortungsvoller Konsum und Produktion

Elektronische Version(en)

https://doi.org/10.1007/978-3-031-86893-1_32 (Zugang: Geschlossen)