Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers

This work presents an innovative system that allows the oriented deposition of continuous fibers or long fibers, pre-impregnated or not, in a thermoplastic matrix. This system is used in an integrated way with the filamentary fusion additive manufacturing technology and allows a localized and orient...

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Main Authors: Miguel Reis Silva, António M. Pereira, Nuno Alves, Gonçalo Mateus, Artur Mateus, Cândida Malça
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Journal of Manufacturing and Materials Processing
Subjects:
Online Access:https://www.mdpi.com/2504-4494/3/2/35
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author Miguel Reis Silva
António M. Pereira
Nuno Alves
Gonçalo Mateus
Artur Mateus
Cândida Malça
author_facet Miguel Reis Silva
António M. Pereira
Nuno Alves
Gonçalo Mateus
Artur Mateus
Cândida Malça
author_sort Miguel Reis Silva
collection DOAJ
description This work presents an innovative system that allows the oriented deposition of continuous fibers or long fibers, pre-impregnated or not, in a thermoplastic matrix. This system is used in an integrated way with the filamentary fusion additive manufacturing technology and allows a localized and oriented reinforcement of polymer components for advanced engineering applications at a low cost. To demonstrate the capabilities of the developed system, composite components of thermoplastic matrix (polyamide) reinforced with pre-impregnated long carbon fiber (carbon + polyamide), 1 K and 3 K, were processed and their tensile and flexural strength evaluated. It was demonstrated that the tensile strength value depends on the density of carbon fibers present in the composite, and that with the passage of 2 to 4 layers of fibers, an increase in breaking strength was obtained of about 366% and 325% for the 3 K and 1 K yarns, respectively. The increase of the fiber yarn diameter leads to higher values of tensile strength of the composite. The obtained standard deviation reveals that the deposition process gives rise to components with anisotropic mechanical properties and the need to optimize the processing parameters, especially those that lead to an increase in adhesion between deposited layers.
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spelling doaj.art-8d8261330bed46a6a27556a3b8eff3ef2022-12-21T19:22:08ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942019-04-01323510.3390/jmmp3020035jmmp3020035Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon FibersMiguel Reis Silva0António M. Pereira1Nuno Alves2Gonçalo Mateus3Artur Mateus4Cândida Malça5Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, PortugalCentre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, PortugalCentre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, PortugalPlastimago—Transformadora de Plásticos, Lda., Estrada de Leiria, 2430-091 Marinha Grande, PortugalCentre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, PortugalCentre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Rua de Portugal, 2430-028 Marinha Grande, PortugalThis work presents an innovative system that allows the oriented deposition of continuous fibers or long fibers, pre-impregnated or not, in a thermoplastic matrix. This system is used in an integrated way with the filamentary fusion additive manufacturing technology and allows a localized and oriented reinforcement of polymer components for advanced engineering applications at a low cost. To demonstrate the capabilities of the developed system, composite components of thermoplastic matrix (polyamide) reinforced with pre-impregnated long carbon fiber (carbon + polyamide), 1 K and 3 K, were processed and their tensile and flexural strength evaluated. It was demonstrated that the tensile strength value depends on the density of carbon fibers present in the composite, and that with the passage of 2 to 4 layers of fibers, an increase in breaking strength was obtained of about 366% and 325% for the 3 K and 1 K yarns, respectively. The increase of the fiber yarn diameter leads to higher values of tensile strength of the composite. The obtained standard deviation reveals that the deposition process gives rise to components with anisotropic mechanical properties and the need to optimize the processing parameters, especially those that lead to an increase in adhesion between deposited layers.https://www.mdpi.com/2504-4494/3/2/35additive manufacturingfused filament fabricationoriented extrusionreinforced compositescarbon fibersprepregs yarnsthermoplastic compositespolyamide
spellingShingle Miguel Reis Silva
António M. Pereira
Nuno Alves
Gonçalo Mateus
Artur Mateus
Cândida Malça
Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
Journal of Manufacturing and Materials Processing
additive manufacturing
fused filament fabrication
oriented extrusion
reinforced composites
carbon fibers
prepregs yarns
thermoplastic composites
polyamide
title Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
title_full Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
title_fullStr Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
title_full_unstemmed Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
title_short Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers
title_sort development of an additive manufacturing system for the deposition of thermoplastics impregnated with carbon fibers
topic additive manufacturing
fused filament fabrication
oriented extrusion
reinforced composites
carbon fibers
prepregs yarns
thermoplastic composites
polyamide
url https://www.mdpi.com/2504-4494/3/2/35
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