Cargando…
Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals
Metal specimens were fabricated via the fused deposition of metals (FDMet) technique with a filament composed of the 316L stainless steel particles and an organic binder. This process was adopted due to its potential as a low-cost additive manufacturing process. The objective of this study is to inv...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321246/ https://www.ncbi.nlm.nih.gov/pubmed/32486111 http://dx.doi.org/10.3390/ma13112493 |
_version_ | 1783551424978747392 |
---|---|
author | Kurose, Takashi Abe, Yoshifumi Santos, Marcelo V. A. Kanaya, Yota Ishigami, Akira Tanaka, Shigeo Ito, Hiroshi |
author_facet | Kurose, Takashi Abe, Yoshifumi Santos, Marcelo V. A. Kanaya, Yota Ishigami, Akira Tanaka, Shigeo Ito, Hiroshi |
author_sort | Kurose, Takashi |
collection | PubMed |
description | Metal specimens were fabricated via the fused deposition of metals (FDMet) technique with a filament composed of the 316L stainless steel particles and an organic binder. This process was adopted due to its potential as a low-cost additive manufacturing process. The objective of this study is to investigate the influence of the processing conditions—layer directions and layer thicknesses—on the mechanical and shrinkage properties of the metal components. The specimens were printed in three different layer directions. The highest ultimate strength of 453 MPa and strain at break of 48% were obtained in the specimen printed with the layer direction perpendicular to the tensile direction. On the other hand, the specimen printed in the layer direction parallel to the tensile direction exhibited poor mechanical properties. The reason for the anisotropy of the properties was investigated through systematic SEM observations. The observations revealed the presence of segregated binder domains in the filaments. It was deduced that the binder domain was oriented in the direction perpendicular to that of the layer and remained as oriented voids even after sintering. The voids oriented perpendicular to the tensile direction act as defects that could cause stress concentration, thus resulting in poor mechanical properties. |
format | Online Article Text |
id | pubmed-7321246 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73212462020-07-06 Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals Kurose, Takashi Abe, Yoshifumi Santos, Marcelo V. A. Kanaya, Yota Ishigami, Akira Tanaka, Shigeo Ito, Hiroshi Materials (Basel) Article Metal specimens were fabricated via the fused deposition of metals (FDMet) technique with a filament composed of the 316L stainless steel particles and an organic binder. This process was adopted due to its potential as a low-cost additive manufacturing process. The objective of this study is to investigate the influence of the processing conditions—layer directions and layer thicknesses—on the mechanical and shrinkage properties of the metal components. The specimens were printed in three different layer directions. The highest ultimate strength of 453 MPa and strain at break of 48% were obtained in the specimen printed with the layer direction perpendicular to the tensile direction. On the other hand, the specimen printed in the layer direction parallel to the tensile direction exhibited poor mechanical properties. The reason for the anisotropy of the properties was investigated through systematic SEM observations. The observations revealed the presence of segregated binder domains in the filaments. It was deduced that the binder domain was oriented in the direction perpendicular to that of the layer and remained as oriented voids even after sintering. The voids oriented perpendicular to the tensile direction act as defects that could cause stress concentration, thus resulting in poor mechanical properties. MDPI 2020-05-29 /pmc/articles/PMC7321246/ /pubmed/32486111 http://dx.doi.org/10.3390/ma13112493 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 Kurose, Takashi Abe, Yoshifumi Santos, Marcelo V. A. Kanaya, Yota Ishigami, Akira Tanaka, Shigeo Ito, Hiroshi Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title | Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title_full | Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title_fullStr | Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title_full_unstemmed | Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title_short | Influence of the Layer Directions on the Properties of 316L Stainless Steel Parts Fabricated through Fused Deposition of Metals |
title_sort | influence of the layer directions on the properties of 316l stainless steel parts fabricated through fused deposition of metals |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321246/ https://www.ncbi.nlm.nih.gov/pubmed/32486111 http://dx.doi.org/10.3390/ma13112493 |
work_keys_str_mv | AT kurosetakashi influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT abeyoshifumi influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT santosmarcelova influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT kanayayota influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT ishigamiakira influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT tanakashigeo influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals AT itohiroshi influenceofthelayerdirectionsonthepropertiesof316lstainlesssteelpartsfabricatedthroughfuseddepositionofmetals |