Properties of Samples from Polymer Materials Manufactured by the Additive Method

Abstract:

A promising direction in industry and construction is the replacement of cast products made of metal, polymer and composite materials for products made by additive methods using FDM technologies. This stimulates the development of research work towards improving the physical, mechanical and operational characteristics of such products. The paper studies the problems arising in the process of using the FDM technology for the industrial production of products. It has been established that it is necessary to solve the problem of heterogeneity of the structure of products, to study the mechanisms of formation of cracks and pores, as well as their influence on the strength characteristics of products and their ability to sustain strength characteristics under dynamic and temperature effects in real operating conditions. The ways of solving the problem of using FDM technology in industry and construction, associated with low physical, mechanical and operational characteristics of polymer products, are shown. Using optical microscopy, it was revealed that the optimal modes of FDM printing are near temperatures of 250°C with a filament layer thickness of 0.2 mm. The specified printing parameters allow the formation of homogeneous parts from a material with minor defects and gaps. Printing parameters are determined based on the initial properties of the materials used, specified by different filament manufacturers, as well as the characteristics and settings of 3D printers. The results obtained ensure the production of 3D-printed parts with the highest possible strength, comparable to the strength of homogeneous samples produced by the traditional casting method.

• Periodical: Solid State Phenomena (Volume 335)
• Pages: 79-84
• DOI: https://doi.org/10.4028/p-6n2zb7
• Online since: July 2022
• Authors: V.T. Erofeev, Tatyana F. Elchishcheva*, M.V. Makarchuk, E.M. Preobrazhenskaya, A.V. Tingaev
• Keywords: 3D-Printing, FDM-Technology, Polylactide, Polymer Materials, Strength Characteristics

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