3D sand printing is an emerging technology that is enabling new possibilities in metal casting with respect to part complexity, casting design, and rapid mold production. The 3D printing technology, also known as additive manufacturing, is a binder jetting process which involves selectively depositing a furan-based binder into a sand bed one thin layer at a time. Over the course of the process, layers are subsequently added until the entire part has been fabricated. Although the use of 3D-printed sand molds in the foundry industry is growing, significant hesitation to widespread implementation remains. In this work, an investigation was conducted to determine the influence of machine settings on the physical characteristics of 3D-printed sand. Two factorial matrices were constructed to directly measure the significance of six settings that change the resin content and compaction characteristics of the bonded sand. Factors include: X-resolution, printhead voltage, layer thickness, and the frequency, speed, and angle of the recoater blade. Responses include: density, permeability, strength, scratch hardness, loss on ignition, and print resolution. Several relationships are reported between machine settings and physical properties of the product. These results will help inform mold manufacturing as the foundry industry continues to adopt additive technologies.

3D砂印刷是一项新兴技术，它在零件复杂性，铸件设计和快速模具生产方面为金属铸造提供了新的可能性。3D打印技术，也称为增材制造，是一种粘合剂喷射工艺，涉及一次将呋喃基粘合剂选择性地沉积到一层薄薄的砂床上。在此过程中，随后会添加各层，直到完成整个零件的制造为止。尽管3D打印的砂模在铸造行业中的使用正在增长，但对于广泛实施仍然犹豫不决。在这项工作中，进行了调查以确定机器设置对3D打印砂的物理特性的影响。构建了两个阶乘矩阵，以直接测量六种设置的重要性，这些设置会改变粘结砂的树脂含量和压实特性。影响因素包括：X分辨率，打印头电压，涂层厚度以及涂覆机刀片的频率，速度和角度。响应包括：密度，磁导率，强度，划痕硬度，灼烧损失和打印分辨率。报告了机器设置和产品物理特性之间的几种关系。随着铸造行业继续采用添加剂技术，这些结果将有助于为模具制造提供信息。渗透性，强度，划痕硬度，灼烧度和打印分辨率。报告了机器设置和产品物理特性之间的几种关系。随着铸造行业继续采用添加剂技术，这些结果将有助于为模具制造提供信息。渗透性，强度，划痕硬度，灼烧度和打印分辨率。报告了机器设置和产品物理属性之间的几种关系。随着铸造行业继续采用添加剂技术，这些结果将有助于为模具制造提供信息。