Mémoires de Master

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    Optimization of FDM printer Parameters using Desirability function and their influence on the mechanical properties of PLA printed specimens
    (2023-06-08) Khammar Nouara Nour El Houda
    It is well known that the manufacturing process has a direct influence on the mechanical properties of elaborated material such as strength resistance, fatigue life, corrosion resistance, stiffness among others. In this study, the influence of 3d printing parameters: infill density, nozzle temperature, printer speed, layer height has been investigated in order to analyze their impacts on young modulus and yield strength of PLA material. The mechanical properties have been obtained from tensile test according to ASTM D-638. A central composite design was used to perform the experimentation. Furthermore, a model of prediction for young modulus and yield strength was established based on experimental data using regression model and MANFIS model. Using the obtained regression function model, a multi-objective optimization has been applied through the desirability function method.