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Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting
FEATURED APPLICATION: This article provides proper fitting parameters, for a wide variety of metallic alloys, to apply the derived mathematical expression (which allows to determine the scanning speed value needed, with respect to laser power) to produce highly dense components through selective las...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8004960/ https://www.ncbi.nlm.nih.gov/pubmed/33807013 http://dx.doi.org/10.3390/ma14061571 |
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author | Estrada-Díaz, Jorge A. Elías-Zúñiga, Alex Martínez-Romero, Oscar Olvera-Trejo, Daniel |
author_facet | Estrada-Díaz, Jorge A. Elías-Zúñiga, Alex Martínez-Romero, Oscar Olvera-Trejo, Daniel |
author_sort | Estrada-Díaz, Jorge A. |
collection | PubMed |
description | FEATURED APPLICATION: This article provides proper fitting parameters, for a wide variety of metallic alloys, to apply the derived mathematical expression (which allows to determine the scanning speed value needed, with respect to laser power) to produce highly dense components through selective laser melting. ABSTRACT: In this work, a previously developed mathematical model to predict bulk density of SLMed (produced via Selective Laser Melting) component is enhanced by taking laser power, scanning speed, hatch spacing, powder’s thermal conductivity and specific heat capacity as independent variables. Experimental data and manufacturing conditions for the selective laser melting (SLM) of metallic materials (which include aluminum, steel, titanium, copper, tungsten and nickel alloys) are adapted from the literature and used to evaluate the validity of the proposed enhanced model. A strong relation between dependent and independent dimensionless products is observed throughout the studied materials. The proposed enhanced mathematical model shows to be highly accurate since the computed root-mean-square-error values (RMSE) does not exceed 5 × 10(−7). Furthermore, an analytical expression for the prediction of bulk density of SLMed components was developed. From this, an expression for determining the needed scanning speed, with respect to laser power, to achieve highly dense components produced via SLM, is derived. |
format | Online Article Text |
id | pubmed-8004960 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80049602021-03-29 Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting Estrada-Díaz, Jorge A. Elías-Zúñiga, Alex Martínez-Romero, Oscar Olvera-Trejo, Daniel Materials (Basel) Article FEATURED APPLICATION: This article provides proper fitting parameters, for a wide variety of metallic alloys, to apply the derived mathematical expression (which allows to determine the scanning speed value needed, with respect to laser power) to produce highly dense components through selective laser melting. ABSTRACT: In this work, a previously developed mathematical model to predict bulk density of SLMed (produced via Selective Laser Melting) component is enhanced by taking laser power, scanning speed, hatch spacing, powder’s thermal conductivity and specific heat capacity as independent variables. Experimental data and manufacturing conditions for the selective laser melting (SLM) of metallic materials (which include aluminum, steel, titanium, copper, tungsten and nickel alloys) are adapted from the literature and used to evaluate the validity of the proposed enhanced model. A strong relation between dependent and independent dimensionless products is observed throughout the studied materials. The proposed enhanced mathematical model shows to be highly accurate since the computed root-mean-square-error values (RMSE) does not exceed 5 × 10(−7). Furthermore, an analytical expression for the prediction of bulk density of SLMed components was developed. From this, an expression for determining the needed scanning speed, with respect to laser power, to achieve highly dense components produced via SLM, is derived. MDPI 2021-03-23 /pmc/articles/PMC8004960/ /pubmed/33807013 http://dx.doi.org/10.3390/ma14061571 Text en © 2021 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 Estrada-Díaz, Jorge A. Elías-Zúñiga, Alex Martínez-Romero, Oscar Olvera-Trejo, Daniel Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title | Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title_full | Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title_fullStr | Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title_full_unstemmed | Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title_short | Enhanced Mathematical Model for Producing Highly Dense Metallic Components through Selective Laser Melting |
title_sort | enhanced mathematical model for producing highly dense metallic components through selective laser melting |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8004960/ https://www.ncbi.nlm.nih.gov/pubmed/33807013 http://dx.doi.org/10.3390/ma14061571 |
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