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Thermomechanical properties of 3D-printed sand moulds using inorganic binder
Additive Manufacturing of 3D-printed sand cores using the binder jetting process is well-established in prototype manufacturing. Due to the rising focus on sustainability and the fact that printed cores are shifting to serial production, a transition from organic to inorganic binder systems is takin...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477477/ https://www.ncbi.nlm.nih.gov/pubmed/37674832 http://dx.doi.org/10.1016/j.heliyon.2023.e19300 |
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author | Wendling, Jochen Thorborg, Jesper Sterzenbach, Marcel Schüssler, Johannes Bührig-Polaczek, Andreas |
author_facet | Wendling, Jochen Thorborg, Jesper Sterzenbach, Marcel Schüssler, Johannes Bührig-Polaczek, Andreas |
author_sort | Wendling, Jochen |
collection | PubMed |
description | Additive Manufacturing of 3D-printed sand cores using the binder jetting process is well-established in prototype manufacturing. Due to the rising focus on sustainability and the fact that printed cores are shifting to serial production, a transition from organic to inorganic binder systems is taking place. To ensure a stable casting process and reduce the scrap rate accurate simulation tools are required. However, a study about the thermomechanical properties and the anisotropy of 3D-printed sand cores has not yet been conducted. In this work the thermomechanical properties of 3D-printed sand cores in three different printing orientations using inorganic binder are given. In contrast to homogeneous materials like metals, the simulation of sand cores requires new material models due to the dependency to hydrostatic pressure. The Drucker-Prager soil plasticity model is used, and the parameters needed for the Drucker-Prager-Cap model until [Formula: see text] are analysed using the three-point-bending test, the indirect tensile test and the uniaxial compression test. In addition to these specific parameters, also general parameters required for mechanical simulation like the Young's modulus, the Poisson's ratio, the density and the thermal expansion coefficient are given. In comparison to the reference binder system for shot cores using inorganic binder, the 3D-printed cores showed a higher mechanical strength. In the tensile region due to the higher binder content and in the compressive region due to the higher AFS number. Furthermore, the binder system for printed cores showed a lower thermostability. |
format | Online Article Text |
id | pubmed-10477477 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-104774772023-09-06 Thermomechanical properties of 3D-printed sand moulds using inorganic binder Wendling, Jochen Thorborg, Jesper Sterzenbach, Marcel Schüssler, Johannes Bührig-Polaczek, Andreas Heliyon Research Article Additive Manufacturing of 3D-printed sand cores using the binder jetting process is well-established in prototype manufacturing. Due to the rising focus on sustainability and the fact that printed cores are shifting to serial production, a transition from organic to inorganic binder systems is taking place. To ensure a stable casting process and reduce the scrap rate accurate simulation tools are required. However, a study about the thermomechanical properties and the anisotropy of 3D-printed sand cores has not yet been conducted. In this work the thermomechanical properties of 3D-printed sand cores in three different printing orientations using inorganic binder are given. In contrast to homogeneous materials like metals, the simulation of sand cores requires new material models due to the dependency to hydrostatic pressure. The Drucker-Prager soil plasticity model is used, and the parameters needed for the Drucker-Prager-Cap model until [Formula: see text] are analysed using the three-point-bending test, the indirect tensile test and the uniaxial compression test. In addition to these specific parameters, also general parameters required for mechanical simulation like the Young's modulus, the Poisson's ratio, the density and the thermal expansion coefficient are given. In comparison to the reference binder system for shot cores using inorganic binder, the 3D-printed cores showed a higher mechanical strength. In the tensile region due to the higher binder content and in the compressive region due to the higher AFS number. Furthermore, the binder system for printed cores showed a lower thermostability. Elsevier 2023-08-22 /pmc/articles/PMC10477477/ /pubmed/37674832 http://dx.doi.org/10.1016/j.heliyon.2023.e19300 Text en © 2023 The Authors. Published by Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Wendling, Jochen Thorborg, Jesper Sterzenbach, Marcel Schüssler, Johannes Bührig-Polaczek, Andreas Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title | Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title_full | Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title_fullStr | Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title_full_unstemmed | Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title_short | Thermomechanical properties of 3D-printed sand moulds using inorganic binder |
title_sort | thermomechanical properties of 3d-printed sand moulds using inorganic binder |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477477/ https://www.ncbi.nlm.nih.gov/pubmed/37674832 http://dx.doi.org/10.1016/j.heliyon.2023.e19300 |
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