| Issue |
MATEC Web Conf.
Volume 388, 2023
2023 RAPDASA-RobMech-PRASA-AMI Conference Advanced Manufacturing Beyond Borders - The 24th Annual International RAPDASA Conference joined by RobMech, PRASA and AMI, hosted by CSIR and CUT
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|---|---|---|
| Article Number | 09003 | |
| Number of page(s) | 20 | |
| Section | Rapid Casting | |
| DOI | https://doi.org/10.1051/matecconf/202338809003 | |
| Published online | 15 December 2023 | |
Effects of used sand recycling on the foundry properties of three-dimensional printed sand moulds and cores
1 Department of Engineering Metallurgy, University of Johannesburg, South Africa
2 Department of Engineering Metallurgy, University of Johannesburg, South Africa
* Corresponding author: makwenamatjila28@gmail.com
dnyembwe@uj.ac.za
Sand casting is one of the important metal casting processes that involves hard labour and patternmaking to produce sand moulds. However, it has evolved considerably since the adoption of rapid sand casting, a type of additive manufacturing. This advancement has reduced costs and improved lead time by eliminating tooling. Nevertheless, there are still some challenges that are being experienced, such as the recyclability of the waste sand produced by the foundry. With high costs of virgin sand and sand disposal, reusing the used sand is important. The objective of this paper is to evaluate the feasibility of adding new sand to the used sand during rapid sand casting. The results indicate that the semi-activated sand collected from the hopper can be reused to produce sand moulds and cores if new sand is added to it.
© The Authors, published by EDP Sciences, 2023
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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