|About this Abstract
|Materials Science & Technology 2020
|Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
|Effects of Printing Parameters on Microstructure and Mechanical Properties of Binder Jet 3D Printed WC-Co
|Katerina Kimes, Pierangeli Rodriguez De Vecchis, Danielle Brunetta, Drew Elhassid, Markus Chmielus
|On-Site Speaker (Planned)
A cermet material with high toughness and hardness, tungsten carbide-cobalt (WC-Co) is commonly used as a material for tooling. The current production method uses traditional powder processing techniques to shape the powder by pressing, extruding, or molding into parts which are then dewaxed and sintered. These processes result in limitations to part geometry and quantity. Implementing additive manufacturing, specifically binder jet 3D printing, will allow for the production of mass-customized and highly complex shapes in a time- and cost-effective manner. WC-Co powder was provided by General Carbide Corporation and characterized as granules composed of sub-micron- to micron-sized particles. Optimal parameters for powder bed packing and green density were determined using design of experiments methods. After sintering and high isostatic pressing, the resulting highly dense parts show comparable hardness and toughness to traditionally manufactured WC-Co parts.