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 |
Re-Imagining Additive Manufacturing through Multi-Material Laser Powder Bed Fusion |
Author(s) |
Jacklyn C. Griffis, Kazi Shahed, Kenneth Meinert, Buket Yilmaz, Matthew Lear, Guha Manogharan |
On-Site Speaker (Planned) |
Jacklyn C. Griffis |
Abstract Scope |
Multi-Material Laser Powder Bed Fusion (MM-LPBF) offers a novel approach for fabricating high-resolution components with both spatially tailored material properties and design by capitalizing on selective powder deposition (SPD) in conventional LPBF processing. Advancements in multi-material additive manufacturing (AM), specifically MM-LPBF is now presenting a unique opportunity to re-imagine additive manufacturing design complexity to achieve spatial functional design requirements. In this study, the fracture mechanics of complex multi-material structures is investigated through multi-scale domains, including mechanical testing (with digital image correlation), finite element analysis, and intermittent micro-CT), microstructural and morphological characterization of the bimaterial interface. This study analyzes the contribution of factors such as thermomechanical material compatibility, process induced interfacial defects and microstructure to determine the ultimate origin of failure. Interface formation mechanisms are explored to elucidate process-structure-property framework for MM-LPBF. Findings study demonstrate both the opportunity of MM-LPBF and current technological challenges to advance the adoption of MM-LPBF. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |