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Open AccessArticle

Effects of the Infill Density on the Mechanical Properties of Nylon Specimens Made by Filament Fused Fabrication

1
Laboratoire Angevin de Mécanique, Procèdes et innovAtion, Ecole Nationale Supérieure d’Art et Métiers, 49100 Angers CEDEX 01, France
2
Laboratory of Innovative Additive Technologies, Moscow State University of Technology “STANKIN”, 127055 Moscow, Russia
*
Author to whom correspondence should be addressed.
Technologies 2019, 7(3), 57; https://doi.org/10.3390/technologies7030057
Received: 30 June 2019 / Revised: 10 August 2019 / Accepted: 13 August 2019 / Published: 16 August 2019
(This article belongs to the Special Issue Reviews and Advances in Materials Processing)
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Abstract

Additive manufacturing of polymer products over the past decade has become widespread in various areas of industry. Using the fused filament fabrication (FFF) method, one of the most technologically simple methods of additive manufacturing, it is possible to produce parts from a large number of different materials, including wear-resistant nylon. The novelty of the work is properties investigation of ±45° filling configuration with different filling degree for nylon, as well as calculating the effect of infill on the strength characteristics, excluding the shell. This article reflects the process of manufacturing samples from nylon using FFF technology with various internal topologies, as well as tensile tests. The analysis of the obtained results is performed and the relationship between the structure of the sample and the limit of its strength is established. To calculate real filling degree and the effect of internal filling on the strength characteristics of the specimen, it is proposed to use a method based on the geometric and mass parameters. The FFF method is promising for developing methods for producing a composite material. The results of this article can be useful in choosing the necessary manufacturing parameters. View Full-Text
Keywords: additive technologies; additive manufacturing; FFF; 3D printing; nylon additive technologies; additive manufacturing; FFF; 3D printing; nylon
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Terekhina, S.; Skornyakov, I.; Tarasova, T.; Egorov, S. Effects of the Infill Density on the Mechanical Properties of Nylon Specimens Made by Filament Fused Fabrication. Technologies 2019, 7, 57.

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