Comparison of PLA and PLA Carbon Fiber Materials on Tensile Test

The FFF (Fused Filament Fabrication) or FDM (Fused Deposition Modelling) method is one of the most widespread technologies among additive manufacturing. PLA (Polylactic acid) is the most commonly used thermoplastic material due to its low cost of printing, biodegradability and the possibility of use in various industries. The trend nowadays is to design and use composite materials with different types of reinforcements such as: carbon, aramid, glass and natural fibers. This paper focuses on the comparison of tensile test of PLA and carbon fiber reinforced PLA materials from the same manufacturer. The main parameters that affect the mechanical properties of 3D prints can include: nozzle temperature, heating pad temperature, raster angle, fill percentage, printing speed, number of wall perimeters and wall thickness. The dimensions and shape of the sample were designed to comply with STN EN ISO 527. 10 samples were printed from each material and printed on a Creality Ender 3 V2 Neo printer. As a result of the paper, the tensile test of the specimens thus created was carried out with subsequent comparison of the values obtained.