Influence of bond interface over the lap-shear performance of 3D printed multi-material samples

Multi-material 3D printing offers new possibilities regarding product development, allowing design freedom and multiple materials choices in terms of colour polymer type. Material extrusion technologies are among the most popular options for multi-material due to their low equipment cost various thermoplastic materials. However, polymers’ compatibility bond interface must be considered components. Extrusion creates parts layer by layer, each is characterised lines extruded at a defined width. Therefore, regardless model’s surfaces, they composed numerous material voids. Depending on Printing process setup, bonding mechanism between can influenced different characteristics horizontal vertical contact interfaces. For this reason, paper aims study influence parameters over through lap-shear tests multimaterials samples made acrylonitrile butadiene styrene (ABS), acrylate (ASA), polycarbonate (PC). The results show that strength improved creating ways mechanical interlock