Issue |
MATEC Web Conf.
Volume 406, 2024
2024 RAPDASA-RobMech-PRASA-AMI Conference: Unlocking Advanced Manufacturing - The 25th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, hosted by Stellenbosch University and Nelson Mandela University
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Article Number | 11003 | |
Number of page(s) | 10 | |
Section | Rapid Casting | |
DOI | https://doi.org/10.1051/matecconf/202440611003 | |
Published online | 09 December 2024 |
Comparison of recycling processes of the used sand produced during the binder-jetting process
1 Department of Metallurgy, University of Johannesburg, South Africa
2 Department of Mechanical and Mechatronic Engineering, Cape Peninsula University of Technology, South Africa
* Corresponding author: makwenamatjila28@gmail.com
The binder-jetting process, also known as rapid sand casting, generates used sand that researchers have been exploring ways to recycle. Methods such as mixing the used sand with new sand or using thermal and mechanical reclamation processes have been investigated. This paper compares the efficiencies of these recycling methods by examining whether the used-sand test specimens meet the required mechanical properties, and their potential for circularity. The methodology used in the paper is based on Multi-Criteria Decision Analysis (MCDA), which is a decision-making process that evaluates and prioritizes multiple criteria to determine the best option using weighing and scoring. Applying the MCDA approach ranked sand mixing as the most effective recycling method, followed by thermal reclamation and then mechanical reclamation. This study aims to improve the understanding of how to manage waste sand produced by rapid sand casting more efficiently.
© The Authors, published by EDP Sciences, 2024
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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