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首页> 外文期刊>Journal of engineering materials and technology >Multifunctional Fused Deposition Modeled Acrylonitrile Butadiene Styrene-Based Structures With Embedded Conductive Channels
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Multifunctional Fused Deposition Modeled Acrylonitrile Butadiene Styrene-Based Structures With Embedded Conductive Channels

机译：多功能融合沉积建模丙烯腈丁二烯苯乙烯基结构与嵌入式导电通道

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摘要

The applicability of additive manufacturing (AM) continues to expand because of research and development efforts in industrial, academic, and governmental institutions. The lure of additive manufacturing lies in the quick time-to-market and ability to produce parts and components with high degrees of topographical complexity empowered by the layer-by-layer production approach. One challenge that is attracting a significant amount of attention is improving the multi-functionality of additively manufactured parts, as enabling multi-functionality will result in transitioning AM to a broader application domain. The objective of this paper is to report novel developments that improve the functionality of polymer-based parts by adding electrical conductivity and fluid management to the existing load-bearing capabilities. A space structure was 3D-printed using acrylonitrile butadiene styrene (ABS) with embedded internal channels throughout the entire structure and then sealed using an acetone-diluted epoxy. The inner surfaces of the embedded channels of the sealed structure were then metallized using an electroless silver-coating process; these processes were found to be robust and independent of the inner diameter and length of the structure. The electromechanical performance of the structure was verified by applying mechanical loading while monitoring the change in electrical resistivity. The latter was found to remain nearly constant up to the point of ultimate mechanical failure. Finite element modeling was used to identify the areas of structural weaknesses and assist in elucidating the failure modes. The results were found to be in good agreement with the experimental data.
机译：由于工业，学术和政府机构的研发努力，加性制造业（AM）的适用性继续扩大。添加剂制造的诱饵在于快速上市和生产具有高度地形复杂性的零件和组件的能力，其由层逐层生产方法具有赋权。吸引大量注意力的一个挑战是改善了加容量制造的部件的多功能，因为实现多功能性将导致将AM转变为更广泛的应用程序域。本文的目的是通过向现有的承载能力增加电导率和流体管理来报告改善基于聚合物零件功能的新颖的发展。使用丙烯腈丁二烯苯乙烯（ABS）具有嵌入式内部通道的空间结构3D印刷，然后使用丙酮稀释的环氧树脂密封。然后使用无电银涂层工艺金属化密封结构的嵌入式通道的内表面;发现这些过程是坚固的，并且独立于结构的内径和长度。通过在监测电阻率变化的同时验证结构的机电性能。后者被发现仍然达到最终机械故障的点。有限元建模用于识别结构弱点的区域，并有助于阐明失效模式。结果发现与实验数据吻合良好。

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