3D Printing Sand Molds for Casting Bespoke Metal Connections - Digital Metal: Additive Manufacturing for Cast Metal Joints in Architecture
3D Printing Sand Molds for Casting Bespoke Metal Connections - Digital Metal: Additive Manufacturing for Cast Metal Joints in Architecture
复制标题
用于铸造定制金属连接的 3D 打印砂模 - 数字金属：建筑中铸造金属接头的增材制造
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
B. Dillenburger
中科院分区：
文献类型：
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作者：
Mania Aghaei Meibodi;Rena Giesecke;B. Dillenburger
金属接头在空间框架结构中扮演着重要的角色，在整体材料和制造成本中占有很大的份额。空间框架是由标准化的金属接头构成的，受限于重复的结构和拓扑结构。对于定制空间框架，单个金属接头的制造仍然是一个挑战。传统的制造方法，如砂型铸造是劳动密集型的，而直接的3D金属打印对于建筑中需要的大量材料来说过于昂贵和缓慢。本研究探讨了粘合剂喷射技术在3D打印砂模中的应用，用于铸造建筑中定制的金属接头。利用这种方法，可以在短时间内经济地制造大量定制金属接头。通过自动生成接头几何图形和相应的模具系统，建立了从设计到制造的高效数字化工艺链。介绍了几种铸造金属接头的设计研究。该方法在包含近200个定制铝接头的全尺寸空间框架结构上成功地进行了测试。
Metal joints play a relevant role in space frame constructions, being responsible for large amount of the overall material and fabrication cost. Space frames which are constructed with standardized metal joints are constrained to repetitive structures and topologies. For customized space frames, the fabrication of individual metal joints still remains a challenge. Traditional fabrication methods such as sand casting are labour intensive, while direct 3D metal printing is too expensive and slow for the large volumes needed in architecture.This research investigates the use of Binder Jetting technology to 3D print sand molds for casting bespoke metal joints in architecture. Using this approach, a large number of custom metal joints can be fabricated economically in short time. By automating the generation of the joint geometry and the corresponding mold system, an efficient digital process chain from design to fabrication is established. Several design studies for cast metal joints are presented. The approach is successfully tested on the example of a full scale space frame structure incorporating almost two hundred custom aluminum joints.