| Issue |
MATEC Web Conf.
Volume 417, 2025
2025 RAPDASA-RobMech-PRASA-AMI Conference: Bridging the Gap between Industry & Academia - The 26th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, co-hosted by CSIR and Tshwane University of Technology, Pretoria
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| Article Number | 09002 | |
| Number of page(s) | 15 | |
| Section | AM Post Processing and Qualification | |
| DOI | https://doi.org/10.1051/matecconf/202541709002 | |
| Published online | 25 November 2025 | |
Surface finishing of L-PBF Ti6Al4V ELI samples for biomedical applications by dry electro- and chemical polishing
1 Department of Mechanical and Mechatronics Engineering, Central University of Technology, Bloemfontein, 9300, South Africa
2 Department of Mechanical & Mechatronic Engineering, University of Stellenbosch, Stellenbosch 7600, South Africa
3 Department of High-Efficiency Processing Technologies, Moscow State University of Technology “STANKIN”, Vadkovskiy per. 3A, 127055, Moscow, Russia
This study outlines a surface finishing approach for Ti6Al4V samples specifically aimed at biomedical implant applications. The process involves initial dry electropolishing (DLyte) followed by chemical polishing (CP). Three samples were fabricated using laser powder bed fusion (L-PBF) and were tested in relation to the orientation of the argon flow and powder feed direction. The effectiveness of the surface finishing process was evaluated with different combinations of polishing times. The combination of 120 minutes DLyte and 20 minutes CP achieved a surface roughness Ra ≤ 5 µm, meeting the requirements for biocompatibility, osseointegration and implant longevity.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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