Autors: Chukalov, K. S., Bakardzhiev, V. I., Sabev, S. T.
Title: STUDY OF INFLUENCE OF 3D PRINTING TEMPERATURE ON SHORE D HARDNESS OF NYLON CF15 CARBON
Keywords: 3D printing, carbon fibre reinforced polymer, Shore D hardness

Abstract: For 3D printing, the extrusion temperature is a key parameter for obtaining good results. Too high printing temperature leads to surface defects and weakened parts. Therefore, research on optimal printing temperatures is extremely relevant. Optimal extrusion temperatures differ for each filament. Extrusion temperatures also affect the energy consumption of the process, as well as its productivity. Printing temperature affects not only the aesthetic properties of parts, but also the mechanical characteristics. A basic mechanical characteristic of materials is their hardness. Hardness measurements are a preferred testing method because they are non-destructive, and for many materials the relationship between hardness indicators and other mechanical indicators, such as maximum tensile strength, is known, which allows for a comprehensive assessment of the mechanical characteristics of a selected material. This article investigates the influence of 3D printing temperature on the Shore D hardness of Nylon CF15 Carbon samples. For this purpose, 20 standardised hardness samples were made. The data were statistically processed, and the main values – median, mode, range, maximum, minimum value of the obtained results were derived. The study of mechanical properties is important for the environment because materials with high mechanical performance are less likely to be replaced under operational conditions, and hardness is a very important mechanical characteristic because it is directly related to other mechanical characteristics.

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Issue

Journal of Environmental Protection and Ecology, vol. 26, pp. 1733-1742, 2025, Bulgaria, ISSN 13115065

Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus