About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture
|
| Presentation Title |
F-9: Residual Stress Characterization in Additively-Manufactured Parts Using a Femtosecond Laser System |
| Author(s) |
Zachary Barker, Brian Schuster |
| On-Site Speaker (Planned) |
Zachary Barker |
| Abstract Scope |
Additive manufacturing techniques such as direct energy deposition (DED) and selective laser melting (SLM) have begun producing increasingly higher-tolerance parts in recent years. With this it has become imperative to find a characterization technique to resolve the internal stresses in metal parts produced by additive manufacturing. We will present work modifying a custom-built femtosecond laser system to act as a destructive analysis tool for characterizing the internal stresses of a printed part. The femtosecond laser system is a high-throughput, lower damage alternative to more commonplace cutting methods for residual stress characterization. Using this system, we conducted residual stress characterization techniques more typically used today such as the slotting and hole-drilling methods alongside showcasing the laser system's capabilities at ease of production for more difficult techniques such as the ring-coring method. Stress profile results will be shown for additively manufactured parts both printed on the build plate and using supports. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |