About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Metals: Multiscale and Non-Equilibrium Solidification Fundamentals
|
| Presentation Title |
Development of a Framework for Understanding and Optimization of Wire Arc Directed Energy Deposition Parameters towards Enhancement of Material Properties |
| Author(s) |
Anthony Jaden Gonzalez, Aleksander Aleman, Tyler Dolemestch , Tanaji Paul , Abderrachid Hamrani, Arvind Agarwal |
| On-Site Speaker (Planned) |
Anthony Jaden Gonzalez |
| Abstract Scope |
Wire Arc Direct Energy Deposition (WDED) offered high deposition rates ideal for large-scale, complex geometries, but optimizing process parameters to enhance material properties remained a key challenge. This study investigated the effects of wire feed rate and interpass dwell time on bead geometry, microstructure, and mechanical properties of ER70S-6 mild steel parts. A closed-loop data acquisition system records real-time welding and thermal data during printing. Twenty-five samples were printed using feed rates from 1.5 to 8.5 m/min and dwell times from 0 to 360 seconds. Thermal imaging captured cooling rates, which were correlated with observed microstructural features and hardness values. Weld penetration, bead morphology, and residual stress were also analyzed. Notably, samples printed at 1.5 m/min exhibited higher hardness and lower weld penetration, indicating that wire feed rate alone was not sufficient to ensure weld quality. These results demonstrated how process conditions influenced the material properties in WDED-fabricated thin-wall structures. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |