Bridging additive manufacturing and sand casting

随着创新的添加剂制造技术的出现，传统制造技术之间的桥梁可能会变得有问题。通过粘结剂喷射添加剂的制造，沙子可以**一次放置一层，然后在层的顶部打印二维图像。印刷**液体将砂粒粘合在一起，这个过程反复进行，直到制造出三维物体。**粘结剂喷射可以用于制造金属铸造工业的砂模，但各种工艺**参数，如粘结剂饱和度、粒度分布和砂子回收方法尚未**得到解决。我们还介绍了我们通过检查再生砂的性能来减少砂废物量的努力。在这个项目中，我们系统地研究了粘结剂饱和度和砂子**分布的影响，以观察3D打印模具的质量和均匀性。自动化混合系统通过控制粘结剂的量和混合时间来帮助**制造过程。**通过我们的努力，我们优化了最关键的粘结剂喷射添加剂制造印刷参数**应用于金属铸造工业部门，为**重要工业部门提供了一个新的技术领域。

As innovative additive manufacturing technologies become available, the bridging between traditional**manufacturing technologies can become problematic. With binder jetting additive manufacturing, sand can be**placed down one layer at a time followed by printing a two-dimensional image on top of the layer. The printing**liquid binds the sand grains together and the process repeats until a three-dimensional object is fabricated.**Binder jetting can be used to fabricate sand molds for the metal casting industry, but various process**parameters such as binder saturation, grain size distribution and sand reclamation methods have not been**addressed. Our efforts to reduce the amount of sand waste via examination of reclaimed sand properties are**described, as well. Within this project we systematically study the effects of binder saturation and sand**distribution to observe the quality and homogeneity of 3D-printed molds. An automated mixing system aids in**the fabrication process by allowing for controlled volumes of binding agents and mixing times to be controlled.**Through our efforts, we optimize the most critical binder jetting additive manufacturing printing parameters to**be implemented into the metal casting industry sector, providing a new realm of technology to be utilized by an**important industrial sector.