In order to increase the versatility of additive manufacturing multimaterial processes, a hybrid system has been developed, which is capable of combining 3D printing technology by DLP (Digital Light Processing) with a two-dimensional Drop-on-Demand Inkjet printing system.\ud\udThrough DLP technology based on digital micromirror devices (DMDs) it is possible to build up 3D geometries layer-by-layer using polymerization of photosensitive resins. Concurrently, while the construction process is performed, the InkJet printing system is used to deposit tiny drops of conductive inks on the substrate generated, which will thus constitute an electric circuit embedded within the three dimensional structure.\ud\udOn the other hand, photosensitive resins have been filled with Low Temperature Co-firing Ceramic (LTCC) particles, in order to modify the basis properties of the part by using sinterizable slurries. Finally the challenges in the sintering process for achieving functional parts are discussed and a few prototypes have been built in order to validate this technology.
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机译:为了增加增材制造多材料工艺的多功能性,已经开发了一种混合系统,该系统能够将DLP(数字光处理)的3D打印技术与二维按需喷墨打印系统相结合。\ ud通过基于数字微镜设备(DMD)的DLP技术,可以使用光敏树脂的聚合逐层建立3D几何形状。同时,在执行构建过程时,将使用喷墨打印系统在生成的基材上沉积导电油墨的小滴,从而将其构成嵌入三维结构中的电路。\ ud \ ud为了通过使用可烧结浆料改变零件的基础性能,已在树脂中填充了低温共烧陶瓷(LTCC)颗粒。最后,讨论了烧结过程中实现功能零件的挑战,并建立了一些原型以验证该技术。
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