|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Supersolidus Liquid Phase Sintering of H13 Tool Steel Fabricated via Binder Jet Additive Manufacturing
||Peeyush Nandwana, Derek Siddel, Christopher Shafer, Amy Elliott
|On-Site Speaker (Planned)
H13 is the most commonly used hot working tool steel. It is mainly used for die casting of aluminum, magnesium, and zinc alloys. The dies are typically fabricated via conventional powder metallurgy routes, thus limiting the complexity of parts that can be fabricated. Also, H13 components are susceptible to cracking due to repeated thermal cycles hence making lower fabrication costs a priority. With the advent of binder jet additive manufacturing (AM) it is possible to fabricate complex near net shape parts that can be densified via sintering at reduced costs. However, binder jet AM uses an organic binder that potentially leaves a carbon residue that may affect sintering kinetics and final properties. Parameters have been developed for >95% densification of binder jet printed parts of H13 via supersolidus liquid phase sintering and the influence of binder on process parameters. The work and associated challenges will be presented in detail.