About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
|
Symposium
|
Poster Session
|
Presentation Title |
Lattice Infill Pattern Design for Increased Green Part Strength and Sintered Density in Metal Binder Jetting |
Author(s) |
Amanda Wei, Kazi Moshiur Rahman, Christopher Williams |
On-Site Speaker (Planned) |
Amanda Wei |
Abstract Scope |
Selective jetting of binder is a critical element of the binder jetting additive manufacturing process, as it defines part geometry and serves as the structural matrix that provides sufficient handleability in green parts. However, preliminary results suggest that binder inhibits sintering and decreases final achievable part density. To balance the conflicting needs between providing both sufficient green part strength and higher sintered part density, the authors explore selective jetting of an architected shell and lattice infill design approach. Preliminary experimental results of printed 316L stainless steel demonstrate that architected parts are capable of simultaneously reaching comparable green part strength to fully bound powder, while also providing an 8% increase in sintered part relative density. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |