Warpage mitigation through infill sectioning in fused filament fabrication
研究了通过分区填充来重新分布收缩力以减轻熔丝制造中翘曲的方法，用3D扫描和曲率评估量化效果，发现能显著改善打印质量但增加打印时间并可能降低机械强度。
This study addresses the warpage issues in Fused Filament Fabrication (FFF) processes by strategically dividing infills to redistribute shrinkage forces, thereby mitigating warpage. The efficacy of these adjustments is evaluated quantitatively through 3D scanning and curvature assessment, coupled with an experimental design approach to optimize sectioning criteria. This sectioning method is particularly beneficial for translational studies where FFF is used to fabricate parts. Our case study focuses on two sample types—round cap parts and long wrench parts—to exemplify challenges related to their geometric characteristics when printed with desktop FFF 3D printers. Results show significant reductions in mean and maximum curvature and height deviations, indicating improvements in print quality and geometric fidelity. However, increased printing times and potential compromises in mechanical strength are noted as drawbacks. These findings enhance the understanding of the interplay between print parameters, part geometry, and designing for additive manufacturing, underscoring the need for further research to balance efficiency and structural integrity in additive manufacturing applications. Future research should explore the benefits of this sectioning strategy in other additive manufacturing processes beyond FFF.