|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Powder Materials Processing and Fundamental Understanding
||Sintering Based Production of Complex Shapes by the Coupling of Additive Manufacturing and Spark Plasma Sintering
||Charles Maniere, Geuntak Lee, Elisa Torresani, Sylvain Marinel, Lise Durand, Claude Estournès, Eugene A. Olevsky
|On-Site Speaker (Planned)
Fusion based additive manufacturing suffers from complex thermal history involving microstructures with columnar grains, cracks, week properties. On the opposite, Spark Plasma Sintering (SPS) allows the sintering under high pressures and low sintering temperature allowing obtaining small grains, metastable phases. However, SPS configuration does not allow producing complex shapes inhering the latter advanced properties. To solve this problem, we have developed an interface based approach coupling additive manufacturing and SPS to allow the fabrication of complex shapes by co-sintering of multiple powder beds. This topic has allowed the production of 7 patents since 2015 and involves advanced additive technologies like the SLA, FDM, binder jetting and advanced sintering models from predicting the powder co-sintering and the shape evolution. This presentation will cover the new interface approach context, the role of the numerical tool to predict the complex sintering behavior, and the presentation of the produced complex shapes and their microstructures.
||Additive Manufacturing, Powder Materials, Modeling and Simulation