| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of High and Ultra-High Temperature Ceramics and Composites: Processing, Characterization and Testing
|
| Presentation Title |
Process Development and Optimization for The Laser Powder Bed Fusion of WC-Ni Cermet Composites |
| Author(s) |
Edgar Mendoza Jimenez, Baby Reeja-Jayan, Jack Beuth |
| On-Site Speaker (Planned) |
Edgar Mendoza Jimenez |
| Abstract Scope |
In this work, laser powder bed fusion (LPBF) is used for the additive manufacturing of composite samples consisting of tungsten carbide particles with a nickel binder. Such process can become a viable low-energy alternative to the conventional production of ceramic-metal composites for applications including tooling, electronics, and wear components. Single track experiments are used to evaluate the melting behavior of the composite material. Three Dimensional samples are then printed with process parameters that adequately melted the material. The density, microstructure, chemical composition, and functional properties of these samples are characterized. Highly dense (>98%) samples were successfully manufactured and analyzed as a function of LPBF parameters. Macro and micro defects resulting from the laser processing are discussed and an optimal processing region is identified for the minimization of these defects. |