Technology and mechanical properties of reinforced continuous fiber 3D-printed thermoplastic composite

Background. Additive technologies based on Fused Deposition Modeling (FDM) modeling methods attract a lot of attention from both industry and research groups, which is explained by low investment costs, ease production, etc. If the processing parameters are correctly selected, products with mechanical properties close to obtained traditional can be obtained. Objective. Practical implementation modernized technology for 3D printing Polylactid Acid (PLA) samples reinforced continuous Kevlar fiber using FDM method determination their properties. Methods experimental theoretical studies limit tensile strength modulus elasticity composite includes testing SHIMADZU AGS-X machine solving inverse problem. Results. Experimental thermoplastic (PLA+Kevlar Æ0.3 mm) were tested tension. It was found that compared unreinforced one volume fraction about 12% increases 2.38 times, 1.45 times. With confidence interval 0.68, error determining ultimate 3.5%, 4.5%. A dependence predicting composites in range changes degree reinforcement up 15%. Conclusions. The application additive increased substantiated.