工艺与制造英文2025被引 10
连续碳纤维增强PLA复合材料3D打印工艺参数优化及拉伸性能研究
Optimization of 3D printing parameters for enhanced tensile properties in continuous carbon fiber reinforced PLA composites
Fidan Bilir Kilinc, Türker Türkoğlu, Saadet Güler, Ahmet Çağrı Kılınç · Ege University
摘要整理
本研究采用熔融沉积成型(FFF)工艺制备连续碳纤维增强PLA复合材料,系统研究了打印工艺参数(特别是线宽和层厚)对复合材料拉伸性能的影响。通过在PLA基体中引入连续碳纤维,旨在克服聚合物增材制造固有的性能限制,提升打印复合材料的力学性能。采用田口方法进行工艺参数优化,利用L9正交表设计实验方案,通过信噪比(S/N)分析确定最优参数组合。研究结果表明,线宽和层厚对打印复合材料的拉伸性能有显著影响,当线宽为1.0 mm、层厚为0.2 mm时,拉伸强度达到最高值291.3 MPa。方差分析(ANOVA)统计结果显示,线宽对整体力学性能的贡献率为58.65%,是最主要影响因素,其次为层厚(33.55%)。微观结构分析进一步证实,优化的打印参数能够改善纤维排列、增强层间粘结、减少孔隙缺陷。研究成果揭示了工艺参数优化在最大化FFF打印连续碳纤维增强聚合物(CFRP)复合材料力学性能中的关键作用,为实现高性能轻量化结构件提供了重要参考。
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