| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
Wire Feed Speed Based Layer Height Controller for Wire Arc Additive Manufacturing |
| Author(s) |
Zaky Hussein, Kyle Saleeby, Christopher Saldana |
| On-Site Speaker (Planned) |
Zaky Hussein |
| Abstract Scope |
This work investigates the implementation and performance of a wire feed speed-based layer height controller to minimize error in Z-direction and thus the contact tip to work piece distance (CTWD) and associated changes in arc characteristics. A wire feed speed-based controller only requires changes to welding parameters to mitigate over-building or under-building and there is no need to change motion platform parameters allowing for simpler implementation. Single weld tracks were deposited with known height errors at various wire feed speeds and a regression model was trained to predict the current CTWD and part height from arc data and a given wire feed speed. A series of experiments were performed to tune a proportional-integral controller to modify the wire feed speed based off feedback from arc data. Controller performance was evaluated by comparing the variation in CTWD, average layer height, surface waviness and peak-to-valley surface roughness. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |