Purpose

This paper aims to investigate the current state of biocomposites used in fused deposition modelling (FDM) with a focus on their mechanical characteristics.

Design/methodology/approach

The study presents a variety of biocomposite materials that have been used in filaments for 3D printing by different researchers. The process of making filaments is then described, followed by a discussion of the process parameters associated with the FDM.

Findings

To achieve better mechanical properties of 3D-printed parts, it is essential to optimize the process parameters of FDM while considering the characteristics of the biocomposite material. Polylactic acid is considered the most promising matrix material due to its biodegradability and lower cost. Moreover, the use of natural fibres like hemp, flax and sugarcane bagasse as reinforcement to the polymer in FDM filaments improves the mechanical performance of printed parts.

Originality/value

The paper discusses the influence of critical process parameters of FDM like raster angle, layer thickness, infill density, infill pattern and extruder temperature on the mechanical properties of 3D-printed biocomposite.

中文翻译：

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熔融沉积成型 (FDM) 制造的 3D 打印生物复合材料机械特性探索综述

目的

本文旨在研究熔融沉积建模（FDM）中使用的生物复合材料的现状，重点关注其机械特性。

设计/方法论/途径

该研究展示了不同研究人员已将其用于 3D 打印细丝的各种生物复合材料。然后描述长丝的制造过程，然后讨论与 FDM 相关的工艺参数。

发现

为了使3D打印零件获得更好的机械性能，必须在考虑生物复合材料的特性的同时优化FDM工艺参数。聚乳酸由于其可生物降解性和较低的成本被认为是最有前途的基质材料。此外，使用大麻、亚麻和甘蔗渣等天然纤维作为 FDM 长丝中聚合物的增强材料可提高打印部件的机械性能。

原创性/价值

本文讨论了 FDM 关键工艺参数（如光栅角度、层厚度、填充密度、填充图案和挤出机温度）对 3D 打印生物复合材料机械性能的影响。