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)
|
Presentation Title |
On the Nature of Recoater Damage Powder Spreading Mechanics |
Author(s) |
Caroline E. Massey, Christopher J Saldaņa |
On-Site Speaker (Planned) |
Caroline E. Massey |
Abstract Scope |
Laser powder bed fusion (PBF-LB) additive manufacturing gained popularity for the creation of low volume parts for defense and commercial applications. Parts made via PBF-LB can be difficult to qualify due to their variation in performance, even within the same build. During the build process, regions of the PBF-LB recoater blade could be subject to damage by spatter or superelevation in the powder bed. As a result, the worn recoater can potentially cause spreading defects in the localized topology profile, which could in turn cause porosity or form deviations. These process concerns are not well understood for their criticality and subsequent impact on part quality. This study will investigate the mechanics of recoater damage through discrete element method simulations and experimental methods. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |