| 초록 |
“Additive Manufacturing”(AM), widely known as three dimensional printing(3D printing), is defined as the process of joining materials to make objects from 3D model data, usually layer by layer, as opposed to subtractive manufacturing methodologies. To date, various AM processes have been developed, including Fused Deposition Modeling(FDM), Selective Laser Sintering(SLS), Laminated Object Manufacturing(LOM), and Binder Jetting(BJ). Of them, Binder jetting(BJ) is one of 3D printing technologies to manufacture complex objects, in which a liquid binding agent is ejected to desired position of a substrate (e.g., sand). For this process, properties of a binder used in BJ, and jetting condition have largely various effects on formability of the objects. In this study, binders for 3D printing were synthesized and the resulting jetting characteristics were identified. In addition, the characteristics of making molds suitable for casting were identified using them. |
