Impact of CNT addition on surface roughness and dimensional characteristics of polymer nano-composite fabricated by FDM method

Nowadays, companies frequently employ additive manufacturing or 3D-printing technologies to check the fitting, shape, and functioning of a planned product preceding design approval and implementation. As additive manufacturing does not require process design, jigs, fixtures, specialized tool path creation, etc., it minimizes the overall manufacturing duration as compared to traditional production. Fused deposition modeling is the kind of additive manufacturing technology that is most frequently employed in the industry. In order for fused deposition modeling to function, extrusion polymer from a nozzle that is preheated between the flow and melting temperature must be deposited layer after layer. The current experimental investigation examines the effect of carbon nanotube addition into the polylactic (PLA) polymer matrix using the fused deposition modeling technique. By combining polylactic acid with carbon nanotubes in the amounts of 0, 0.5, 1, 1.5, and 2 wt