| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Advancements in Lubrication-Free Additive Friction Stir Deposition and Post-Processing Heat Treatments for Aluminum Alloys |
| Author(s) |
J. Brian Jordon, Paul Jordon |
| On-Site Speaker (Planned) |
J. Brian Jordon |
| Abstract Scope |
Additive friction stir deposition (AFSD) is an innovative solid-state additive manufacturing technique that harnesses frictional heat and intense plastic deformation to create metallurgical bonds through layer-by-layer deposition. This method is particularly advantageous for manufacturing bulk components or performing repairs, as it operates at sub-solidus temperatures, making it ideal for hard-to-weld aluminum alloys compared to fusion-based methods. Traditionally, graphite lubrication is used on the feedstock during AFSD to prevent internal jamming. However, graphite can cause contamination, resulting in compromised mechanical properties and increased susceptibility to corrosion. This presentation explores recent advancements in AFSD processing techniques that eliminate the need for lubrication. In particular, it covers the development of processing approaches for multi-layer forging replacements and provides recommendations for post-deposition heat treatments aimed at achieving isotropic mechanical properties in precipitation-hardened aluminum alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, |