Investigation of failure loads of adhesive bonded and induction welded joints on similar and dissimilar substrates

Abstract

This study investigates the effect of adhesive bonding and induction welding on the maximum load of joints of Additive Manufacturing (AM) printed thermoplastic substrates with steel substrates. DINC75 was used as steel substrate and polylactic acid (PLA) as thermoplastic substrate. Fast-curing cyanoacrylate adhesive was used as adhesive. As the novelty of the study, there is a type of joint formed by induction welding of 3D printed substrates with steel has not been found in the literature. Single lap joint (SLJ) and double lap joint (DLJ) geometries were selected as joint geometries. The maximum load of joints was determined by applying tensile test to the joints. As a result, all the joints showed no adhesive failure and also the induction welded joints showed 27.51% and 65.49% increase in failure load compared to adhesive joints for SLJ and DLJ, respectively. The maximum load of joint of 9.40 kN was obtained for the DLJ geometry prepared by induction welding. Induction welding was found to be a good alternative to adhesive bonded joints.

Keywords

• Additive manufacturing
• Adhesive bonding
• Induction welding
• Failure load

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