About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Powder Feedstock Conservation and Rejuvenation for Laser Powder Bed Fusion (LPBF): An In-Depth View |
Author(s) |
Alpravinosh Alagesan, Mehmet Cagirici, Paulo Jorge da Silva Bartolo |
On-Site Speaker (Planned) |
Alpravinosh Alagesan |
Abstract Scope |
Laser Powder Bed Fusion (LPBF) Additive Manufacturing (AM), is rapidly advancing due to its increasing adoption as an advanced manufacturing technique capable of producing intricate and reliably consistent parts. However, this heightened interest in AM has prompted concerns regarding its sustainability. In response, a comprehensive study was conducted completing over 25 prints of a high-alloyed corrosion-grade stainless steel. The primary objective being to extend the lifespan of LPBF powder feedstock by salvaging powder that would otherwise be discarded and identifying the properties that render it unusable. Powders to be discarded underwent extensive physical assessment and chemical property analyses to identify deviations from virgin LPBF feedstock powders. Based on the identified deviations, rejuvenation methods such as oxide layer removal and reduction of larger particles were applied for reintroduced into the LPBF process. The results of these experiments contribute to improving the sustainability of LPBF technology and improve industry reliance on LPBF-AM. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |