|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing for Energy Applications III
||Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications
||Peeyush Nandwana, Rangasayee Kannan, Donovan Leonard, Derek Siddel, Chase Joslin, Ryan Dehoff
|On-Site Speaker (Planned)
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.
||Additive Manufacturing, Iron and Steel, Phase Transformations