(中南大學(xué) 材料科學(xué)與工程學(xué)院，長沙 410083)
摘 要: 直寫成型技術(shù)是一種新型的無模成型技術(shù)，該技術(shù)借助計算機輔助設(shè)計和精密機械，精確控制懸浮液的沉積，通過逐層疊加的方式制備簡單三維周期結(jié)構(gòu)和含跨度(無支撐)或具有很大高寬比的復(fù)雜三維結(jié)構(gòu)。綜述直寫成型技術(shù)的研究進展，闡述其基本原理并介紹成型裝置，重點總結(jié)直寫成型技術(shù)對懸浮液性能的要求及其應(yīng)用，最后探討該技術(shù)存在的問題及發(fā)展前景。
關(guān)鍵字: 直寫成型技術(shù)；三維周期結(jié)構(gòu)；懸浮液；應(yīng)用
（School of Materials Science and Engineering, Central South University, Changsha 410083, China）
Abstract:Direct ink writing (DIW) is a novel moldless forming technology for simple 3D periodic structures and complex 3D structures with spanning (unsupported) elements or high aspect ratio walls. With the computer aided design and precision machinery, the suspension is accurately deposited via the way of layer-by-layer. The research and development of direct ink writing was reviewed. The fundamental theory and experimental set-up were introduced. In addition, requirements of suspension property and applications of this forming method were specially summarized. Finally, the problem and development of direct ink writing were also discussed.
Key words: direct ink writing; 3D periodic structure; suspension; application
