用于 FDM 3D 打印的聚乳酸/铁复合材料的可打印性和机械性能

Korbkaroon Doungkeaw, Jennarong Tungtrongpairoj
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引用次数: 0

摘要

在 FDM 3D 打印技术中,金属颗粒增强在复合材料的机械性能和可打印性方面发挥着重要作用。聚乳酸/铁复合材料长丝被广泛应用于磁性和生物医学设备等许多领域。本研究旨在研究铁颗粒对聚乳酸/铁复合材料的可打印性和机械性能的影响,并将其与另一种聚乳酸复合材料(聚乳酸/不锈钢复合材料)进行比较。聚乳酸/铁(Fe)和聚乳酸/不锈钢(SS)复合材料在不同的印刷温度(260-290 °C)、印刷速度(30-90 mm/s)和填充密度(100%)下进行印刷。印刷聚乳酸/铁复合材料的最大应力和伸长率分别比印刷聚乳酸/不锈钢复合材料高出约 1.5 倍和 1.2 倍。此外,在印刷温度为 280 ℃、印刷速度为 60 mm/s 时,印刷聚乳酸/铁复合材料试样的最大应力为 40.20 MPa。光学显微镜观察到铁和不锈钢颗粒在聚乳酸复合材料基体中均匀分布,并显示出印刷结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Printability and Mechanical Properties of PLA/Iron Composites for FDM 3D Printing
Metal particle reinforcement plays an important role in the mechanical properties and printability of composite materials for FDM 3D-printing technology. PLA/Iron composite filament is widely used in many applications, such as magnetic and biomedical devices. This research aims to study the effect of iron particles on the printability and mechanical properties of PLA/Iron composite and compare it with another PLA composite of PLA/Stainless steel composite. The PLA/Iron (Fe) and PLA/Stainless steel (SS) composites were printed at different printing temperatures between 260-290 °C, printing speeds between 30-90 mm/s, and infill density of 100%. The max stress and elongation of printed PLA/Fe composite were higher than that of printed PLA/SS composite about 1.5 and 1.2 times. Moreover, the highest max stress of printed PLA/Fe composite specimens was 40.20 MPa at a printing temperature of 280 °C and printing speed of 60 mm/s. The optical microscope observed the homogeneous iron and stainless-steel particle distribution in PLA composite matrix and revealed the printed structure.
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