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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Investigating the effect of disturbances on the dimensional quality of parts from Directed Energy Deposition(DED)
Author(s) Emmanuel K. Bamido, Michael Cullinan
On-Site Speaker (Planned) Emmanuel K. Bamido
Abstract Scope Metal based Additive manufacturing processes like Directed Energy Deposition experience limited industrial adaptation due to dimensional inaccuracies of the final part. One source of quality defects is the dynamic changes occurring within the process. In this research, a multiphysics model was developed to analyze the effects of wave-like disturbances on the final dimension of the part. The disturbances at varying frequencies were integrated into the substrate geometry, and two nozzles sprayed metallic powder(Inconel) on the substrate at constant laser power. The final height of the part was measured at different frequencies, and it was observed that the amplitude of the response reduced with increasing frequency.
Proceedings Inclusion? Undecided

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