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 |
Towards Affordable Aluminum Additive Manufacturing: Considerations on the Manufacturing of Non-Explosible NExp-1 AlSi10Mg on Medium-Wattage Systems |
Author(s) |
Fatma Nur Depboylu, Andrei-Alexandru Popa, Tomohiro Oyama, Yushi Ono |
On-Site Speaker (Planned) |
Fatma Nur Depboylu |
Abstract Scope |
Laser powder bed fusion of aluminum poses safety challenges due to the reactive nature of the feedstock. The non-explosible claim of the NExp-1 AlSi10Mg from Equispheres has been validated through Lower Explosive Limit and Minimum Ignition Energy, ranking it in the lowest explosion class per JIS Z 8817. This relieves the need of otherwise costly investment in the manufacturing environment. With its enhanced flowability and homogenously spherical particles above 100 µm in average size distribution, the feedstock facilitates faster build rates at high layer thickness. Attempting to utilize this powder on a 400 W Yb laser, well below the 700 W for which it was designed, leads to atypical energy behavior within the melt pool. After the necessary process parameter development, the melt pool and microstructure of fabricated samples were analyzed, with density and mechanical characteristics highlighting the promising future of affordable aluminum additive manufacturing for lightweight applications. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |