| 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 |
Elucidating the Role of Local Thermal Environment on Multi-track Melt Pool Morphology Variation for Inconel 718 Laser Powder Bed Fusion via CIFEM |
| Author(s) |
Seth T. Strayer, Alaaeldin Olleak, Praveen S. Vulimiri, Shawn Hinnebusch, William Frieden Templeton, Florian Dugast, Sneha Narra, Albert To |
| On-Site Speaker (Planned) |
Seth T. Strayer |
| Abstract Scope |
Despite advancements in finite element (FE) thermal simulation techniques for laser powder bed fusion (L-PBF), these models employ a functional heat source model, which invokes a tedious calibration process and provides inaccurate thermal fields compared to high-fidelity computational fluid dynamics (CFD) simulations. Consequently, the driving force behind multi-track melt pool size variation has remained enigmatic up to this point. In this work, the authors extend CIFEM to multi-track scenarios for Inconel 718 L-PBF to help address these issues. CIFEM's data-driven heat source model is trained to predict the thermal fields from multi-track CFD simulations with different cooling times to establish the role of the local thermal environment. By imposing these fields on the desired FE solution domain, the simulated melt pool sizes are within 10% error regarding experimental measurements up to five consecutive tracks while providing substantially more accurate thermal fields to traditional FE models. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |