Purpose

This study aims to identify the effects of infill patterns and infill percentages on the energy consumption (EC) of fused filament fabrication (FFF). With increasing attention on carbon-fiber-reinforced–poly-ether-ether-ketone (CFR-PEEK) for practical applications in FFF, infill pattern and infill percentage for FFF can be properly controlled to achieve better energy performance of CFR-PEEK outputs. However, the effects of infill parameters on EC for FFF using CFR-PEEK have not been clearly addressed yet.

Design/methodology/approach

Using a full factorial experimental design, six types of infill patterns (rectilinear, grid, triangular, wiggle, fast honeycomb and full honeycomb) and four different infill percentages (25%, 50%, 75% and 100%) were considered for a design of experiments with three replicates. Then, analysis of variance, Tukey test and regression analysis were performed to investigate both the effects of infill pattern and infill percentage on energy performance during FFF.

Findings

EC is characterized to be high for the wiggle and triangular patterns and low for the rectilinear pattern during both the printing stage and the entire process. The wiggle pattern results in the greatest increase in EC, whereas the rectilinear pattern leads to the least increase in EC. Although EC during the FFF process increases as the infill percentage increases, the average power demand during the printing stage decreases.

Originality/value

Both the main and interaction effects of infill pattern and infill percentage are investigated to estimate EC and power during the different process stages of FFF.

中文翻译：

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填充图案和填充百分比对使用 CFR-PEEK 的熔融长丝制造能耗的影响

目的

本研究旨在确定填充图案和填充百分比对熔丝制造 (FFF) 能耗 (EC) 的影响。随着碳纤维增强聚醚醚酮 (CFR-PEEK) 在 FFF 中的实际应用越来越受到关注，可以适当控制 FFF 的填充模式和填充百分比，以实现更好的 CFR-PEEK 输出能量性能。然而，填充参数对使用 CFR-PEEK 的 FFF 的 EC 的影响尚未得到明确解决。

设计/方法/方法

使用全因子实验设计，设计考虑了六种类型的填充图案（直线、网格、三角形、摆动、快速蜂窝和全蜂窝）和四种不同的填充百分比（25%、50%、75% 和 100%）三个重复的实验。然后，进行方差分析、Tukey 检验和回归分析以研究填充模式和填充百分比对 FFF 期间能源性能的影响。

发现

在印刷阶段和整个过程中，EC 的特点是摆动和三角形图案的 EC 高，而直线图案的 EC 低。摆动模式导致 EC 增加最大，而直线模式导致 EC 增加最少。尽管 FFF 过程中的 EC 会随着填充百分比的增加而增加，但打印阶段的平均功率需求会降低。

原创性/价值

研究了填充图案和填充百分比的主要影响和相互作用，以估计 FFF 不同工艺阶段的 EC 和功率。