The impact of temperature changing on surface roughness of FFF process

[摘要] The current study investigates the surface roughness of models produced by a 3D printer. All models were produced by addition of solid material, a process called fused filament fabrication (FFF): initial extrusion into plastic filament, second extrusion and trace-binding during the 3D printing process. A low cost 3D printer Ultimaker was used to print these items. Polylactic acid (PLA) was used as main polymer material for printing. The temperature was parameter under direct variations in order to examine if there was an influence on roughness of 3d printed models. The surface roughness parameters were: the average mean surface roughness (Ra, μm), the surface roughness depth (Rz, μm), the total height of the roughness profile (Rt, μm) and the arithmetic mean width of profile elements (Rsm, μm). The examination showed conditionality: as temperature was increased the surface roughness parameters were further decreased.

[发布机构] Mechanical Engineering Department, Technological Educational Institute of Thessaly, Larissa, Greece^1;Mechanical Engineering and Industrial Design Department, Technological Educational Institute of West Macedonia, Kozani, Greece^2;Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece^3

[效力级别] 能源学

[关键词] 3D printing process;Arithmetic mean;Impact of temperatures;Mean surface roughness;Poly lactic acid;Polymer materials;Solid material;Surface roughness parameters