About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Modeling GMA-DED Bead and Layer Geometry for Defect Elimination |
Author(s) |
Sophia E. Hill, Jonah Klemm-Toole |
On-Site Speaker (Planned) |
Sophia E. Hill |
Abstract Scope |
Due to its large build volume and high deposition rate, gas metal arc directed energy deposition (GMA-DED) is being considered for producing large structural components in a wide range of applications. Heat accumulation during the build process can lead to different bead geometries and the emergence of various defects. In this work, a model was developed to predict the geometry of individual beads based off heat source settings to select the optimal hatch spacing to avoid lack of fusion porosity and bead stacking. An infrared thermal camera was used to record temperatures during the build process to account for heat accumulation and resulting bead geometry changes. A framework to design optimal hatch spacings to account for heat accumulation is discussed. The results of this work will allow for more effective GMA-DED process development and accelerate the acceptance of this technology for structural components. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Solidification, Additive Manufacturing |