| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Inter-pass Temperature Impact in Wire-Arc Additive Manufacturing |
| Author(s) |
Steven Williams, Evan Gitto, Bradley Jared |
| On-Site Speaker (Planned) |
Steven Williams |
| Abstract Scope |
In wire-arc additive manufacturing (WAAM), variations in bead geometry often lead to defects and unintended part geometries. Several factors influence the bead geometry including the material deposited or process inputs. In this study, ER70S-3 wire was deposited onto steel build plates at surface temperatures from ambient to 300°C using different weld parameter sets. To control build plate surface temperature, a preheat stage was designed and implemented. Then, steel beads were deposited onto the build plate surface and subsequently measured to determine their geometric properties. Initial results indicate that as the preheat temperature increases, resulting bead height decreases, bead height variation decreases, and bead width increases. Further analysis is being conducted and will be discussed to determine the impact of preheat on the resulting bead microstructure. The results of these experiments will be used to create process maps which will serve as a foundation for bead geometry control during printing. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |