About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification X
|
| Presentation Title |
Optimizing Additively Manufactured 316L via In-Situ Heat Treatment |
| Author(s) |
Chad Copperthite, Amber Schneeweis, Thariqul Islam |
| On-Site Speaker (Planned) |
Chad Copperthite |
| Abstract Scope |
As additive manufacturing (AM) becomes increasingly commercialized, optimizing in-situ heat treatment offers a pathway to improve part quality while reducing post-processing and cost. This study explores the effect of dual-laser parameters on stainless steel 316L parts produced using the Trumpf TruPrint 1000. The primary laser performs standard melting, while a secondary laser follows with a controlled delay and reduced power to apply in-situ heat treatment. By varying the secondary laser's power, offset, and delay time, the goal is to reduce thermal gradients and residual stress. Printed samples were analyzed for porosity, microstructure, melt pool geometry, hardness, and tensile properties. Mechanical testing included standard tensile tests and indentation-based measurements of strength and elongation. Results show that optimized in-situ heat treatment reduces porosity, refines microstructure, and improves strength and ductility. The study highlights how laser timing and power influence melt pool evolution and mechanical performance in dual-laser AM systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Solidification, Iron and Steel |