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 |
Powder Flow Dynamics in Laser Metal Deposition |
Author(s) |
Prveen Bidare, Ahmet Guner, Amaia Jiménez, Khamis Essa |
On-Site Speaker (Planned) |
Prveen Bidare |
Abstract Scope |
This study investigates the intricate dynamics of powder flow in laser metal deposition (LMD) of CM247 Ni-based superalloy, exploring the behavior of particles within the process. By analyzing particle interactions and agglomeration phenomena, the research sheds light on the powder conditions at the nozzle exit. The analysis reveals a predominance of large particles at the nozzle exit, while smaller particles tend to disperse away. Utilizing a combination of numerical modeling and experimental validation, it aims to provide a comprehensive understanding of the complex mechanisms governing powder flow dynamics in LMD. Comparing the particle size distribution (PSD) at the nozzle exit underscores the accumulation of larger particles at the exit. Numerical analysis suggests that small particles adhere to larger ones due to higher adhesive forces, thereby altering the PSD. Ultimately, the findings hold significant implications for optimizing process parameters and enhancing the efficiency and quality of laser metal deposition techniques. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |