A novel of hybrid laminates additively manufactured via material extrusion – vat photopolymerization

Abstract

The hybrid manufacturing process of fused deposition modeling (FDM) based material extrusion (ME) and liquid crystal display (LCD) based vat photopolymerization (VP) and its characteristics have been evaluated in the present study. Several tests were conducted, including tensile, flexural, hardness, density, and surface roughness tests, to determine the characteristics and properties of the laminates. The result shows that the tensile strength of the hybrid materials (HM) was 4.4 % higher than the SP-LCD but 154.35 % lower than the ME. The flexural strength of HM was 76.13 % higher than SP-LCD but 11.39 % lower than ME. Hardness of HM has a hardness value of 74.83 Shore D and 77.83 Shore D for the HM-1 and HM-2 testing conditions, respectively. The type of constituent material influences the density value where HM has a density value of 1,2 g/mm3. Furthermore, there is a significant difference in Ra value between the longitudinal and axial directions for Specimen-Fused Deposit Modeling (SP-FDM), Surface roughness HM-1, and HM-2. Based on the present study, the performance of HM depends on its constituent material type, and the hybrid multi-material showed the potential reinforced model for various applications.