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Realization of Rapid Large-Size 3D Printing Based on Full-Color Powder-Based 3DP Technique

机译:基于全彩粉基3DP技术的快速大尺寸3D打印实现

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摘要

The powder-based 3DP (3D printing) technique has developed rapidly in creative and customized industries on account of it’s uniqueness, such as low energy consumption, cheap consumables, and non-existent exhaust emissions. Moreover, it could actualize full-color 3D printing. However, the printing time and size are both in need of upgrade using ready printers, especially for large-size 3D printing objects. Given the above issues, the effects of height and monolayer area on printing time were explored and the quantitative relationship was given in this paper conducted on the specimens with a certain gradient. On this basis, an XYX rotation method was proposed to minimize the printing time. The mechanical tests were conducted with three impregnation types as well as seven printing angles and combined with the characterization of surface structure based on the scanning electron microscope (SEM) digital images to explore the optimum parameters of cutting-bonding frame (CBF) applied to powder-based 3D printing. Then, four adhesives were compared in terms of the width of bonded gap and chromatic aberration. The results revealed that ColorBond impregnated specimens showed excellent mechanical properties which reached maximum when printed at 45° to Z axis, and α-cyanoacrylate is the most suitable adhesive to bond full-color powder-based models. Finally, an operation technological process was summarized to realize the rapid manufacturing of large-size full-color 3D printed objects.
机译:粉末的3DP(3D打印)技术在创意和定制行业中迅速发展,因为它的独特性,例如低能耗,便宜的耗材和不存在的废气排放。此外,它可以实现全彩3D打印。但是,打印时间和大小都需要使用就绪打印机升级,特别是对于大尺寸3D打印对象。鉴于上述问题,探讨了高度和单层区域对印刷时间的影响,并在本文中进行了定量关系,在具有一定梯度的标本上进行。在此基础上,提出了一种XYX旋转方法以最小化印刷时间。机械测试用三种浸渍类型以及七个印刷角度进行,并基于扫描电子显微镜(SEM)数字图像结合表面结构的表征,以探索施加到粉末的切割框架(CBF)的最佳参数基于3D打印。然后,在粘合间隙和色差宽度方面进行比较四种粘合剂。结果显示,当在45°至Z轴上印刷时,彩色浸渍试样显示出达到最大值的优异的机械性能,α-氰基丙烯酸酯是粘合全彩粉的型号最合适的粘合剂。最后,总结了操作技术过程,以实现大尺寸全彩3D印刷物体的快速制造。

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