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 |
Thermographic Porosity Estimation by Monitoring Non-Uniformity of Intra-Layer Cooling During Hybrid Directed Energy Deposition |
Author(s) |
Mario A. Rodriguez-Parra, Eric MacDonald, Bharat Yelamanchi, Jimena Morales, Thomas Feldhousen, Pedro Cortes, Eric LaNeave, Callan Herberger |
On-Site Speaker (Planned) |
Mario A. Rodriguez-Parra |
Abstract Scope |
Hybrid Directed Energy Deposition (DED) combines the strengths of additive and subtractive manufacturing for efficient material use and complex design capabilities. In hot wire laser deposition, wire feedstock offers cost and safety advantages over powder-based AM. However, porosity remains a challenge, potentially impacting mechanical properties. This study proposes a novel approach using thermal monitoring during fabrication to indirectly quantify porosity. By analyzing cooling rates and internal temperature contours, the computer vision algorithm aims to identify voids, demonstrating a positive correlation with CT scan porosity measurements. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |