Purpose

The purpose of this research is to design 3D print and analyze mechanical as well as microstructural behavior of interlaced fibrous structures using Dremel 3D45 additive manufacturing (AM) machine.

Design/methodology/approach

A series of plain and twill weave fabrics are designed using computer-aided design software Solidworks and printed using fused deposition modeling machines to determine the best model that could be printable. The structures were designed in such a way that the fabricated yarns with pure (PLA) were not sticking to each other in the fabric structure. The specimens were printed in vertical orientation and then tensile and three-point bending (flexural) tests were conducted for twill weave fabrics.

Findings

The tests showed that the mechanical strength was higher in the warp direction than in the weft direction. This difference was because of printing of continuous filament-like yarns in the warp direction and staple-like yarns in the weft direction. This orthotropic property of the material was verified by analyzing its microscopic structures via optical microscope.

Research limitations/implications

Future work should include improvement of the structure and exploration of different polymers and their composites to increase the tensile, bending and other strengths to make the 3D-printed structures more flexible and stronger. Future research should also focus on the large-scale manufacturing of 3D printed fabrics.

Practical implications

This paper supports work on wearable 3D-printed fabrics. The 3D-printed fabric will also contribute to new applications and products such as liquid filters.

Originality/value

The research done in this work is new and original. This paper contributes to new knowledge by providing a better understanding of polymers and their 3D printing capabilities to form a complex fabric structure.

中文翻译：

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交错纤维结构的增材制造

目的

本研究的目的是使用 Dremel 3D45 增材制造 (AM) 机器设计 3D 打印并分析交错纤维结构的机械和微观结构行为。

设计/方法/方法

一系列平纹和斜纹织物使用计算机辅助设计软件 Solidworks 设计，并使用熔融沉积造型机进行打印，以确定可打印的最佳模型。这些结构的设计方式使纯 (PLA) 制成的纱线在织物结构中不会相互粘连。样品以垂直方向印刷，然后对斜纹织物进行拉伸和三点弯曲（弯曲）测试。

发现

试验表明，经向机械强度高于纬向机械强度。这种差异是因为在经向印刷连续长丝状纱线而在纬向印刷短纤维状纱线。通过光学显微镜分析其微观结构，验证了材料的这种正交各向异性特性。

研究限制/影响

未来的工作应该包括改进和探索不同聚合物及其复合材料的结构，以增加拉伸、弯曲和其他强度，使 3D 打印结构更加灵活和坚固。未来的研究还应该集中在 3D 打印织物的大规模制造上。

实际影响

本文支持可穿戴 3D 打印织物的研究。3D 打印织物还将有助于新的应用和产品，例如液体过滤器。

原创性/价值

在这项工作中所做的研究是新的和原创的。本文通过更好地理解聚合物及其 3D 打印能力来形成复杂的织物结构，从而为新知识做出贡献。