| About this Abstract |
| Meeting |
2024 AWS Professional Program
|
| Symposium
|
2024 AWS Professional Program
|
| Presentation Title |
New High Efficiency Shielded (HES) Wire Arc (WA) Directed Energy Deposition (DED) Process for On-board & Expeditionary Applications |
| Author(s) |
James Logan McNeil, Michael Carney, Josh Shoemaker, Stacey Smith, Dennis Harwig |
| On-Site Speaker (Planned) |
James Logan McNeil |
| Abstract Scope |
Wire arc (WA) directed energy deposition (DED) additive manufacturing (AM) also known as Wire Arc Additive Manufacturing (WAAM) is considered a strategic capability for manufacturing and repairing components on-board ships and in expeditionary applications. A key problem with WA-DED processes under expeditionary conditions is the sourcing, transportation, and storage of high purity “welding grade” shielding gases. There is a strategic need to develop a gas-less or high efficiency shielded (HES) WA process for these applications or reduce the amount of shielding gas to minimize storage and sourcing requirements.
The goal of this project was to develop HES DED AM process technology for 316L stainless steel. The project evaluated commercial and new formulations of self-shielded and gas-shielded flux cored arc consumables, designed and developed new innovative apparatus, and demonstrated the preferred procedures using representative procedure qualification requirements. In addition, robotic “hybrid” DED and spindle-based interpass cleaning procedures were developed to ensure soundness with the preferred HES FCA DED process. The combination of process, apparatus, electrode, and robotic procedure workflows were demonstrated on a variety of demonstration geometries. |
| Proceedings Inclusion? |
Undecided |