About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications III
|
| Presentation Title |
Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications |
| Author(s) |
Peeyush Nandwana, Rangasayee Kannan, Donovan Leonard, Derek Siddel, Chase Joslin, Ryan Dehoff |
| On-Site Speaker (Planned) |
Peeyush Nandwana |
| Abstract Scope |
In 2018, the industrial sector accounted for about 22% greenhouse gas emissions in the U.S. of which significant emissions are a direct result of various manufacturing activities. This presents a unique opportunity for additive manufacturing (AM) to indirectly play a key role in minimizing emissions and improving energy efficiency. For example, the fabrication of tools with conformal cooling channels can shorten the tooling cycle times up to 25% and at the same time enhance the tool life, compared to conventionally welded tools that undergo premature failure. We present that segregation in the laser powder bed fusion of a Ti-free Grade 300 maraging steel can be leveraged to develop single-step heat treatments for achieving superior strength and ductility compared to multi-step conventional heat treatments. Further, we discuss the optimization strategy for optimizing the heat treatments. Finally, a case study on the fabrication of an injection mold tool will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Phase Transformations |