Development and Evaluation of a Distributed Recycling System for Making Filaments Reused in Three-Dimensional Printers
Development and Evaluation of a Distributed Recycling System for Making Filaments Reused in Three-Dimensional Printers
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DOI：
10.1115/1.4041747
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发表时间：
2019-02-01
影响因子：
4
通讯作者：
Kim, Namsu
中科院分区：
文献类型：
--
作者：
Lee, Dongoh;Lee, Younghun;Kim, Namsu
由于3D打印机的应用数量的增加，作为熔丝制造(FFF)型3D打印机的典型长丝材料的热塑性树脂(如丙烯腈-丁二烯-苯乙烯(ABS)和聚乳酸(PLA))的使用也显著增加。这一趋势引起了人们对回收长丝的兴趣，这既是为了降低制成品的制造成本，也是为了减少温室气体排放。此外，该回收系统对于在回收过程中结合碳纳米管或聚多巴胺来制造高导电丝或高强度长丝等功能性长丝非常有用。本研究介绍了以废旧聚合物为原料制作3D打印机再生长丝系统的设计过程。该系统包括四个主要部分，用于回收长丝：粉碎机，将聚合物废料粉碎成小块；挤出机，从粉碎的长丝中挤出长丝；传感和控制组件，通过闭环控制系统调节挤出长丝的直径；以及卷绕机。此外，还对原丝和回收丝的尺寸精度、机械强度进行了考察和比较。
Due to an increase in the number of applications for 3D printers, the use of thermoplastic resins such as acrylonitrile butadiene styrene (ABS) and poly lactic acid (PLA), which are typical filament materials for fused filament fabrication (FFF) type 3D printers, has also increased significantly. This trend has produced an interest in recycled filaments, both to reduce the manufacturing cost of fabricated products and to lower greenhouse gas emissions. Also, this recycling system is very useful to make functional filament such as highly conducting or high strength filament by combining carbon nanotube or polydopamine during recycling process. This study presents the design procedures of system for making recycled filaments for 3D printers from waste polymer. The system integrates four main parts for recycling filament: a shredder, which crushes polymer waste into small pieces; an extruder, which extrudes filament from the crushed pieces; a sensing and control component, which regulates the diameter of the extruded filament via a closed-loop control system, and a spooler. Additionally, the dimensional accuracy, the mechanical strength of pristine, and recycled filaments were investigated and compared.