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A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies

In metal product manufacturing, additive manufacturing (AM) is a method that has the advantage of fabricating complex shapes and customized production, unlike existing machining methods. However, owing to the characteristics of the AM process, anisotropy of macrostructure occurs because of various c...

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Autores principales: Yang, Min-Seok, Kang, Ji-Heon, Kim, Ji-Wook, Kim, Kun-Woo, Kim, Da-Hye, Sung, Ji-Hyun, Ko, Dae-Cheol, Lee, Jae-Wook
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746237/
https://www.ncbi.nlm.nih.gov/pubmed/35009217
http://dx.doi.org/10.3390/ma15010070
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author Yang, Min-Seok
Kang, Ji-Heon
Kim, Ji-Wook
Kim, Kun-Woo
Kim, Da-Hye
Sung, Ji-Hyun
Ko, Dae-Cheol
Lee, Jae-Wook
author_facet Yang, Min-Seok
Kang, Ji-Heon
Kim, Ji-Wook
Kim, Kun-Woo
Kim, Da-Hye
Sung, Ji-Hyun
Ko, Dae-Cheol
Lee, Jae-Wook
author_sort Yang, Min-Seok
collection PubMed
description In metal product manufacturing, additive manufacturing (AM) is a method that has the advantage of fabricating complex shapes and customized production, unlike existing machining methods. However, owing to the characteristics of the AM process, anisotropy of macrostructure occurs because of various causes such as the scan direction, melting, fusion, and cooling of the powdered material. The macrostructure anisotropy is realized from the scan direction, and when a single layer is stacked in one direction, it is expressed as orthogonal anisotropy. Here, the classical lamination theory is applied to simply calculate the individual orthotropic layers by superimposing them. Through this, the authors analyzed whether the mechanical properties of the product are isotropically expressed with a periodic layer rotation strategy. To determine if the mechanical properties can be reasonably considered to be isotropic, a shock absorber mount for a vehicle was manufactured by AM. The tensile and vibration test performed on the product was compared with the finite element analysis and experimental results. As a result of the comparison, it was confirmed that the macroscopically of the product was considered isotropic as the load-displacement diagram and the fracture location coincided, as well as the natural frequency and mode shape.
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spelling pubmed-87462372022-01-11 A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies Yang, Min-Seok Kang, Ji-Heon Kim, Ji-Wook Kim, Kun-Woo Kim, Da-Hye Sung, Ji-Hyun Ko, Dae-Cheol Lee, Jae-Wook Materials (Basel) Article In metal product manufacturing, additive manufacturing (AM) is a method that has the advantage of fabricating complex shapes and customized production, unlike existing machining methods. However, owing to the characteristics of the AM process, anisotropy of macrostructure occurs because of various causes such as the scan direction, melting, fusion, and cooling of the powdered material. The macrostructure anisotropy is realized from the scan direction, and when a single layer is stacked in one direction, it is expressed as orthogonal anisotropy. Here, the classical lamination theory is applied to simply calculate the individual orthotropic layers by superimposing them. Through this, the authors analyzed whether the mechanical properties of the product are isotropically expressed with a periodic layer rotation strategy. To determine if the mechanical properties can be reasonably considered to be isotropic, a shock absorber mount for a vehicle was manufactured by AM. The tensile and vibration test performed on the product was compared with the finite element analysis and experimental results. As a result of the comparison, it was confirmed that the macroscopically of the product was considered isotropic as the load-displacement diagram and the fracture location coincided, as well as the natural frequency and mode shape. MDPI 2021-12-22 /pmc/articles/PMC8746237/ /pubmed/35009217 http://dx.doi.org/10.3390/ma15010070 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Min-Seok
Kang, Ji-Heon
Kim, Ji-Wook
Kim, Kun-Woo
Kim, Da-Hye
Sung, Ji-Hyun
Ko, Dae-Cheol
Lee, Jae-Wook
A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title_full A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title_fullStr A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title_full_unstemmed A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title_short A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies
title_sort study on the mechanical properties of an automobile part additively printed through periodic layer rotation strategies
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746237/
https://www.ncbi.nlm.nih.gov/pubmed/35009217
http://dx.doi.org/10.3390/ma15010070
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