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This paper deals with the testing of the properties of a bonded joint made of aluminum alloy EN AW 5754, where the laser cleaner MRJ FL C120 was used for the preparation of the bonded surfaces. Different laser beam settings were used to achieve the desired roughness. The bonded joints were formed using a two-component high strength epoxy adhesive. The research analyzes the effect of surface roughness created by MRJ FL C120 laser cleaner on the strength of the bonded joint under tensile test. The adhesion of the adhesive to the surface of the bonded material is analyzed. Furthermore, the tensile strength test results as a function of the surface roughness of the material are evaluated. In the evaluation of the results, the effects of different surface roughness produced by the laser cleaning method on the strength of the bonded joint were determined.
Keywords: Laser, surface, bonding, mechanical properties, aluminum, EN AW 5754© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.