Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process
Laser powder bed fusion, particularly the selective laser melting (SLM), is an additive manufacturing (AM) technology used to produce near-net-shaped engineering components for biomedical applications, especially in orthopaedics. Ti6Al4V is commonly used for producing orthopaedic implants using SLM...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Journal of Manufacturing and Materials Processing |
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| Online Access: | https://www.mdpi.com/2504-4494/7/1/43 |
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| author | Rosaria Rovetta Paola Ginestra Rosalba Monica Ferraro Keren Zohar-Hauber Silvia Giliani Elisabetta Ceretti |
| author_facet | Rosaria Rovetta Paola Ginestra Rosalba Monica Ferraro Keren Zohar-Hauber Silvia Giliani Elisabetta Ceretti |
| author_sort | Rosaria Rovetta |
| collection | DOAJ |
| description | Laser powder bed fusion, particularly the selective laser melting (SLM), is an additive manufacturing (AM) technology used to produce near-net-shaped engineering components for biomedical applications, especially in orthopaedics. Ti6Al4V is commonly used for producing orthopaedic implants using SLM because it has excellent mechanical qualities, a high level of biocompatibility, and corrosion resistance. However, the main problems associated with this process are the result of its surface properties: it has to be able to promote cell attachment but, at the same time, avoid bacteria colonization. Surface modification is used as a post-processing technique to provide items the unique qualities that can improve their functionality and performance in particular working conditions. The goal of this work was to produce and analyse Ti6Al4V samples fabricated by SLM with different building directions in relation to the building plate (0° and 45°) and post-processed by anodization and passivation. The results demonstrate how the production and post processes had an impact on osteoblast attachment, mineralization, and osseointegration over an extended period of time. Though the anodization treatment result was cytotoxic, the biocompatibility of as-built specimens and specimens after passivation treatment was confirmed. In addition, it was discovered that effective post-processing increases the mineralization of these types of 3D-printed surfaces. |
| first_indexed | 2024-03-11T08:36:39Z |
| format | Article |
| id | doaj.art-95af6611098146a18bf4f4c5a3c7e329 |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-03-11T08:36:39Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-95af6611098146a18bf4f4c5a3c7e3292023-11-16T21:26:15ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942023-02-01714310.3390/jmmp7010043Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion ProcessRosaria Rovetta0Paola Ginestra1Rosalba Monica Ferraro2Keren Zohar-Hauber3Silvia Giliani4Elisabetta Ceretti5Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyInstitute of Molecular Medicine “Angelo Nocivelli”, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, ItalyMetallurgical and Powders Technologies Lab, Institute of Metals, Technion City, Haifa 320003, IsraelInstitute of Molecular Medicine “Angelo Nocivelli”, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, ItalyDepartment of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyLaser powder bed fusion, particularly the selective laser melting (SLM), is an additive manufacturing (AM) technology used to produce near-net-shaped engineering components for biomedical applications, especially in orthopaedics. Ti6Al4V is commonly used for producing orthopaedic implants using SLM because it has excellent mechanical qualities, a high level of biocompatibility, and corrosion resistance. However, the main problems associated with this process are the result of its surface properties: it has to be able to promote cell attachment but, at the same time, avoid bacteria colonization. Surface modification is used as a post-processing technique to provide items the unique qualities that can improve their functionality and performance in particular working conditions. The goal of this work was to produce and analyse Ti6Al4V samples fabricated by SLM with different building directions in relation to the building plate (0° and 45°) and post-processed by anodization and passivation. The results demonstrate how the production and post processes had an impact on osteoblast attachment, mineralization, and osseointegration over an extended period of time. Though the anodization treatment result was cytotoxic, the biocompatibility of as-built specimens and specimens after passivation treatment was confirmed. In addition, it was discovered that effective post-processing increases the mineralization of these types of 3D-printed surfaces.https://www.mdpi.com/2504-4494/7/1/43laser powder bed fusionbuilding orientationanodizationetchingtitaniumosseointegration |
| spellingShingle | Rosaria Rovetta Paola Ginestra Rosalba Monica Ferraro Keren Zohar-Hauber Silvia Giliani Elisabetta Ceretti Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process Journal of Manufacturing and Materials Processing laser powder bed fusion building orientation anodization etching titanium osseointegration |
| title | Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process |
| title_full | Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process |
| title_fullStr | Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process |
| title_full_unstemmed | Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process |
| title_short | Building Orientation and Post Processing of Ti6Al4V Produced by Laser Powder Bed Fusion Process |
| title_sort | building orientation and post processing of ti6al4v produced by laser powder bed fusion process |
| topic | laser powder bed fusion building orientation anodization etching titanium osseointegration |
| url | https://www.mdpi.com/2504-4494/7/1/43 |
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