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The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process

Fused deposition modeling (FDM) is commonly used to print different products with highly complex features. Process parameters for FDM are divided into controllable or uncontrollable parameters. The most critical ones are built orientation, layer thickness, infill pattern, infill density, and nozzle...

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Detalles Bibliográficos
Autores principales: Lalegani Dezaki, Mohammadreza, Mohd Ariffin, Mohd Khairol Anuar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761330/
https://www.ncbi.nlm.nih.gov/pubmed/33255897
http://dx.doi.org/10.3390/polym12122792
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author Lalegani Dezaki, Mohammadreza
Mohd Ariffin, Mohd Khairol Anuar
author_facet Lalegani Dezaki, Mohammadreza
Mohd Ariffin, Mohd Khairol Anuar
author_sort Lalegani Dezaki, Mohammadreza
collection PubMed
description Fused deposition modeling (FDM) is commonly used to print different products with highly complex features. Process parameters for FDM are divided into controllable or uncontrollable parameters. The most critical ones are built orientation, layer thickness, infill pattern, infill density, and nozzle diameter. This study investigates the effects of combined infill patterns in 3D printed products. Five patterns (solid, honeycomb, wiggle, grid, and rectilinear) were combined in samples to analyze their effects on mechanical properties for tensile strength analysis. Polylactic acid (PLA) samples were printed in different build orientations through two directions: flat and on-edge. The limitation was that the software and machine could not combine the infill patterns. Thus, the patterns were designed and assembled in computer aided design (CAD) software. Finite element analysis (FEA) was used to determine the patterns’ features and results showed honeycomb and grid have the highest strength while their weights were lighter compared to solid. Moreover, 0° samples in both flat and on-edge direction had the strongest layer adhesion and the best quality. In contrast, perpendicular samples like 60° and 75° showed poor adhesion and were the weakest specimens in both flat and on-edge, respectively. In brief, by increasing the build orientation, the strength decreases in this study.
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spelling pubmed-77613302020-12-26 The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process Lalegani Dezaki, Mohammadreza Mohd Ariffin, Mohd Khairol Anuar Polymers (Basel) Article Fused deposition modeling (FDM) is commonly used to print different products with highly complex features. Process parameters for FDM are divided into controllable or uncontrollable parameters. The most critical ones are built orientation, layer thickness, infill pattern, infill density, and nozzle diameter. This study investigates the effects of combined infill patterns in 3D printed products. Five patterns (solid, honeycomb, wiggle, grid, and rectilinear) were combined in samples to analyze their effects on mechanical properties for tensile strength analysis. Polylactic acid (PLA) samples were printed in different build orientations through two directions: flat and on-edge. The limitation was that the software and machine could not combine the infill patterns. Thus, the patterns were designed and assembled in computer aided design (CAD) software. Finite element analysis (FEA) was used to determine the patterns’ features and results showed honeycomb and grid have the highest strength while their weights were lighter compared to solid. Moreover, 0° samples in both flat and on-edge direction had the strongest layer adhesion and the best quality. In contrast, perpendicular samples like 60° and 75° showed poor adhesion and were the weakest specimens in both flat and on-edge, respectively. In brief, by increasing the build orientation, the strength decreases in this study. MDPI 2020-11-26 /pmc/articles/PMC7761330/ /pubmed/33255897 http://dx.doi.org/10.3390/polym12122792 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lalegani Dezaki, Mohammadreza
Mohd Ariffin, Mohd Khairol Anuar
The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title_full The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title_fullStr The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title_full_unstemmed The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title_short The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
title_sort effects of combined infill patterns on mechanical properties in fdm process
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761330/
https://www.ncbi.nlm.nih.gov/pubmed/33255897
http://dx.doi.org/10.3390/polym12122792
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