| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
2024 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-34: Effect of Fastener Hole Repair on High-strength Aluminum Alloy Plates via Additive Friction Stir Deposition |
| Author(s) |
Ismael Y. Hidalgo, Paul Allison, Brian Jordon |
| On-Site Speaker (Planned) |
Ismael Y. Hidalgo |
| Abstract Scope |
This study evaluates the potential of solid-state additive manufacturing techniques, particularly additive friction stir deposition (AFSD), in repairing high-strength aluminum alloy 7050. A BOND GL7 AFSD machine deposits graphite-free dual AA7050 round feed rods to achieve this. Fastener holes are prone to crevice and galvanic corrosion damage. Therefore, a blended-out area around the fastener hole is implemented to remove macro-cracks and corrosion damage. The AFSD process is then carried out to fill the area, and the specimen is machined back to the original equipment manufacturer's (OEM) specifications. The repaired specimen's microstructure is evaluated to analyze the repair interface, and the heat input effect on the substrate material is assessed. Furthermore, fatigue properties are tested to quantify the structural performance of the repairs. The study's results will demonstrate the potential of solid-state manufacturing to return damaged components to service while also identifying the process's weaknesses and strengths in repairing AA7050. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |