Effect of adhesive characteristics on static strength of adhesive-bonded aluminum alloys |
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| Affiliation: | 1. School of Mechanical Engineering, Tongji University, 4800, Cao׳an Highway, Shanghai 201804, China;2. Global Research & Development Center, General Motors Corporation, Warren, MI 48090-9055, USA;1. LUNAM Université, Ecole Centrale de Nantes, Institut de Recherche en Génie Civil et Mécanique, UMR CNRS 6183, BP 92101, 44321 Nantes Cedex 3, France;2. Equipe MMC, Université Libanaise, Faculté de génie, Campus Hadath, Beyrouth, Lebanon;3. Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, PO Box 80248, Jeddah 21589, Saudi Arabia;1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, PR China;2. National Key Laboratory of Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, PR China;1. Robert Bosch GmbH, Postfach 300240, 70442 Stuttgart, Germany;2. Lehrstuhl für Kunststofftechnologie, Technische Universität Dortmund, Leonhard-Euler-Str. 5, 44227 Dortmund, Germany;1. Mechanical Laboratory, National Engineering School of Monastir, Monastir, Tunisia;2. Automotive Industry, ICAR, Sousse, Tunisia |
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| Abstract: | The use of adhesive is posed to increase dramatically for application to the next generation of vehicle structures as is the use of aluminum. In this study, the effect of adhesive characteristics on the strength of adhesive-bonded lap shear aluminum was investigated. It was found that the joint strength depended on not only the adhesive properties but the bond adhesion between the adhesive and adherend. For the given selected aluminum substrates, to ensure the cohesive failure mode and consistent joint strength it is necessary to select an adhesive which had a weaker than or comparable strength to the bond adhesion. To improve the failure mode from adhesive to cohesive, atmospheric pressure plasma surface treatment of X610-T4PD and X626-T4P aluminum was performed and results showed that it improved not only the joint strength but degree of cohesive failure mode. |
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| Keywords: | Epoxides adhesive Aluminum Contact angle Adhesion by physical adsorption |
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