工艺与制造英文2020被引 14
连续天然纤维增强复合材料空间曲面三维打印方法
3D Printing Method of Spatial Curved Surface by Continuous Natural Fiber Reinforced Composite
Haiguang Zhang, Di Liu, Tinglong Huang, Qingxi Hu, Herfried Lammer · Shanghai University
摘要整理
开发了一种基于熔融沉积成型（FDM）技术的五轴三维打印机用于制造连续亚麻纤维增强塑料（CFFRP）复合材料零件的方法。传统FDM打印零件存在需要支撑结构、阶梯效应明显和力学性能不理想等缺陷。为解决这些问题，本研究首先制备了连续天然纤维预浸丝材，其次通过曲线路径规划生成G代码，最后采用五轴三维打印机进行打印。打印零件的表面质量得到显著改善。与平面分层方法相比，三维打印CFFRP试样的压缩强度和模量分别提高了29%和522%。该方法充分利用五轴打印机的多轴联动优势，实现了复杂空间曲面的高效制造，有效改善了打印件的表面质量和力学性能，为天然纤维增强复合材料的增材制造提供了新的技术途径。
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