Kim Dong-Hyun, Lee Jinwoo, Bae Jinju, Park Sungbum, Choi Jihwan, Lee Jeong Hun, Kim Eoksoo
3D Printing Manufacturing Process Center, Korea Institute of Industrial Technology (KITECH), Ulsan 44413, Korea.
Materials (Basel). 2018 Oct 11;11(10):1941. doi: 10.3390/ma11101941.
3D printing technology has recently been highlighted as an innovative manufacturing process. Among various 3D printing methods, binder jetting (BJ) 3D printing is particularly known as technology used to produce the complex sand mold quickly for a casting process. However, high manufacturing costs, due to its expensive materials, need to be lowered for more industrial applications of 3D printing. In this study, we investigated mechanical properties of sand molds with a lightweight structure for low material consumption and short process time. Our stress analysis using a computational approach, revealed a structural weak point in the mesh-type lightweight design applied to the 3D-printed ceramic/polymer composite.
3D打印技术最近作为一种创新制造工艺而备受关注。在各种3D打印方法中，粘结剂喷射（BJ）3D打印尤其作为一种用于快速为铸造工艺生产复杂砂模的技术而闻名。然而，由于其材料昂贵，3D打印在更多工业应用中需要降低高昂的制造成本。在本研究中，我们研究了具有轻质结构的砂模的机械性能，以实现低材料消耗和短加工时间。我们使用计算方法进行的应力分析揭示了应用于3D打印陶瓷/聚合物复合材料的网格型轻质设计中的一个结构弱点。
