Geometrical and mechanical performance of multi-material fused deposition modelling

1st International Conference on Mechanical Electronic and Biosystem Engineering

Alief, N.A.^1 ; Utomo, M.S.^2 ; Kartika, I.^2 ; Whulanza, Y.^1^3

Department of Mechanical Engineering, Universitas Indonesia, Indonesia^1

Research Center for Metallurgy and Materials, Indonesia Institute of Sciences, Indonesia^2

Research Center for Biomedical Engineering, Universitas Indonesia, Indonesia^3

关键词: Additive manufacturing process;    Comparative studies;    Filament materials;    Fused deposition modelling;    Lattice structures;    Material variation;    Mechanical performance;    Printed structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/557/1/012022/pdf
DOI  :  10.1088/1757-899X/557/1/012022

来源: IOP

【 摘 要 】

One method that has been used on additive manufacturing process is fused deposition modelling (FDM). This method employs material extrusion in the form of filament to build a product. Several materials have been developed as the filament, each with its own mechanical, chemical, and thermal properties. Certain FDM machines are capable to print filaments from different materials. Although, each materials require different printing parameters. Consequently, different geometrical and mechanical properties from same design may be produced from their different printing parameters. Therefore, in order to obtain the characteristic of FDM machine output on multi-material, a comparative study is conducted. Lattice structures constructed from 3D CAD model with difference in pore configuration are printed by different filament materials on same FDM machine. We investigate the geometrical and mechanical properties of the structure, especially on the capability of the lattice structure to bear compressive load. There are 42-53% of pore dimension difference between the printed structure and the design despite material variation is used for each pore configuration.