Investigation of the hardness of 3D-printed products after heat treatment

Authors: Turchenko M.V., Goncharova Yu.A.
Published in issue: #5(70)/2022
DOI: 10.18698/2541-8009-2022-5-796
Category: Metallurgy and Science of Materials | Chapter: Metal Science, Thermal Processing of Metals and Alloys
Keywords: additive technologies, 3D printing, polymeric materials, heat treatment, hardness measurement, fused deposition modeling, polylactide, product modification
Published: 24.06.2022

This article describes the hardness of 3D-printed products made by FDM (Fused Deposition Modeling) technology after heat treatment at different temperatures. The experimental samples were made of PLA (polylactide) plastic. The hardness was measured with a stationary Shore hardness tester using the D scale. As a result of processing the experimental data, the dependence of changes in the hardness of 3D-printed images on the heating temperature was determined. Based on the data obtained, conclusions about the prospects of heat treatment of 3D-printed products using FDM technology were made, and actions for increasing the efficiency of heat treatment to increase the mechanical properties were proposed.

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