Özet:

In recent years, 3D printer technologies, printing materials and software used in these technologies have become increasingly widespread. Due to the limitations in the dimensions of the produced parts, studies are being carried out to joining the parts produced with a 3D printer. In these studies, the adhesive bonding technique stands out because it is more economical and practical than other joining methods. However, since the parts produced with the printer have low surface energies, it is difficult to joining them without extra surface treatment. For the bonding process to be effective, it is necessary to optimize the adhesive type, surface preparation, bonding thickness and pressure applied throughout the bonding process. In this study, parts with different filling ratios (20% and 100%) produced from PLA Plus filament with a 3D printer were joined using JB Kwick Weld adhesive. A widely used metal clip application and a design/manufactured mold were used for clamping in the adhesive joints. Mechanical abrasion method (240 SiC and 600 SiC sanding) was preferred in the preparation of the bonding surface. After the bonding process, the mechanical properties of the joint were determined by the tensile test. As a result of the experimental studies, it was observed that the strength value of the part increased with the increase in the infill rate. It has been observed that the surface preparation processes and the choice of press/pressure type directly affect the bonding strength. The highest mechanical strength was obtained when 240 SiC sandpaper surface preparation and metal clip application were used at two different infill ratios.

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