Improve the surface roughness of PETG products in FDM 3D printing process with addition of Carbon Fiber
Abstract
Abstract: The aim of this study is to improve the surface properties of PETG material in 3D printer products by adding Carbon-Fiber (CF). Carbon-Fiber is a material that can be added to PETG, PLA, ABS, Nylon and Polycarbonate PC filaments to increase their strength and stiffness. The main contribution of this study is to provide a comprehensive evaluation of the surface roughness of PETG and PETG/carbon-Fiber filaments printed by fused deposition modeling (FDM) technique. The surface roughness is measured using surface roughness PCE-RT20000 tester. By adding 15% weight of Carbon-Fiber to PETG material, the surface roughness value was reduced by 32.7% in the final 3D printed product. This resulted from Carbon-Fiber's capacity to improve the material's flexibility and strength as well as its capacity to close gaps between PETG material threads by enhancing flow and adhesion. The chemical interaction between Carbon-Fiber and PETG contributed to increased flow and adhesion of the material. This interaction plays a role in obtaining good surface properties.