Heat treatment effect on dynamic characteristics of the polylactide beam structures printed on a 3D printer by the FDM method
Authors: Logunenko M.Yu., Korbut E.A., Kuklin V.E., Ermilov A.S.
Published in issue: #11(131)/2022
DOI: 10.18698/2308-6033-2022-11-2225
Category: Mechanics | Chapter: Mechanics of Deformable Solid Body
The paper presents general description of the FDM technology and a brief overview of its application in the aerospace industry. Main advantages and disadvantages of using poly-lactide in the 3D printing are considered. Influence of heat treatment on the dynamic characteristics of beam structures printed with a 3D printer from polylactide were determined. Resonance oscillation tests of the beam samples were carried out at different filling densities and various modes of preliminary thermal processing in the furnace. Comparative analysis of natural frequencies and damping coefficients of the samples depending on the preliminary heating temperature is provided. Experimental study showed that heat treatment of the beam structures made of polylactide leads to an increase in their rigidity and practically is not affecting the damping. Results of the work made it possible to determine the optimal preheating temperature for polylactide.
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