Investigation of the Adhesion Performance of Polymer Parts Produced by FDM‐3D Printing

The additive manufacturing (AM) technique developed technologically in recent years has significant advantages compared to traditional manufacturing methods. The part sizes manufactured by AM are within certain limits owing to technological constraints. The subsequent assembly of additively manufactured parts is an important solution for overcoming dimensional constraints. Adhesive bonding offers more practical and applicable methods for joining 3D printing materials compared to other joining methods. In this work, the adhesion performance of the adherends fabricated from polylactic acid (PLA) and acrylonitride butadiene styrene (ABS) filaments by using fused deposition modeling (FDM) technology was researched with respect to various production parameters using single‐lap adhesive joint (SLJs) specimens. In the manufacturing of the SLJs, three different epoxy adhesives (DP460, Loctite 9492, Loctite 9466) were employed. PLA and ABS adherends were fabricated with different infill ratios (50%, 75% and 100%) and various raster angle combinations (0°, 0/90°, 45/45°). The experimental work was designed in accordance with the Taguchi L 18 experimental design. The effects of the production parameters on the experimental results were commented on by Taguchi and ANOVA analyses. At the end of the study, the maximum failure load was determined as 1989 N and the minimum failure load as 916 N.