Gizem ŞIDIM, Mustafa DOĞU, Belma ÖZBEK
Additive manufacturing technology has been rapidly developing in recent years. This technology is preferred for its simplicity, speed, and minimal waste production. It finds applications in diverse fields such as prototyping, medicine, construction, aviation, and education. Fused Deposition Modeling (FDM) is the most widely used system for additive manufacturing of polymers due to its relatively low cost, minimal material waste, and ease of use. The FDM process typically utilizes a continuous polymer filament as the feedstock material. Thermoplastics like Polylactic Acid (PLA) and Acrylonitrile Butadiene Styrene (ABS) are commonly utilized in FDM technology. Moreover, in responding to sectoral demands, the use of high-performance thermoplastics like Polyether ether ketone (PEEK), as well as polymer filaments enhanced with various additives, is becoming more widespread in FDM technology. Recent literature research has emphasized the use of continuous fiber-reinforced composites in additive manufacturing technologies. Effective impregnation of the fiber and matrix is crucial for producing continuous fiber-reinforced composites. In this study, it was focused on the production of continuous carbon fiber (CCF) reinforced propylene (PP) filaments for additive manufacturing technologies. For this purpose, CCF/PP filaments were produced using an extrusion method with an impregnation mold. To enhance filament quality and mechanical properties, the effects of three process variables were investigated such as impregnation mold temperature (210, 220, and 230 °C), pin angle (56, 70 and 80°), and pulling speed (1, 2, and 3 m/min), using the Taguchi experimental design method. Mechanical properties were characterized by conducting tensile tests on the filaments, and impregnation quality was evaluated using scanning electron microscopy (SEM). According to the ANOVA analysis, the pin angle was identified as the most influential parameter on the mechanical properties. ORCID NO: 0000-0002-8738-3424

Anahtar Kelimeler: Continuous Fiber Reinforced Filament, Impregnation Mold, Carbon Fiber Reinforced Polypropylene Composite Filaments, Impregnation Quality