| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Binding and Alloying Properties of a Solid-free Organic Binder in Binder Jetting Additive Manufacturing of Steel |
| Author(s) |
Wei Xin Tan, Po-Ju Chiang, Chang Quan Lai, Adrian Ong, John Samuel Dilip Jangam, Ming Jen Tan, Raju V. Ramanujan, Li Ping Tan |
| On-Site Speaker (Planned) |
Wei Xin Tan |
| Abstract Scope |
In-situ alloying in steel can be achieved in binder jetting additive manufacturing technology by altering the composition of the liquid binder used. Carbon is often left as residue after high temperature sintering in organic binder. The diffusion of the carbon will result in the change of microstructure of the sintered steel part, often leading to enhancement in mechanical properties. Nanoparticles or suspensions are usually added to binder to achieve doping properties, but this can cause non-uniform particles dispersion and print nozzle clogging. Hence, we developed a solid-free binder with doping properties using an organic compound to act as binder and dopant simultaneously. In this study, the binding and doping properties were evaluated, and improvements in mechanical properties were observed in both the green and sintered parts. Finally, we also demonstrated the potential to fabricate site-specific alloy through the control of the carbon concentration using the newly developed binder. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |