增材制造的连续碳纤维增强热塑性复合材料的钻井性能评估
Altuğ Uşun1,2, Cem Alparslan3, Muhammed Furkan Erhan4
1Medical Device Design and Production Application and Research Center, Karadeniz Technical University, 61080 Trabzon, Türkiye.
Polymers
|February 27, 2026
概括
钻孔连续纤维增强热塑性复合材料 (CFRTP) 需要仔细选择参数. 最佳条件涉及低料率和高切割速度,以最大限度地减少损坏并提高组件可靠性.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 增材制造 增材制造 增材制造
背景情况:
- 连续纤维增强热塑性复合材料 (CFRTP) 越来越多地用于先进的应用.
- 材料挤出 (MEX) 增材制造使复杂的CFRTP组件制造成为可能.
- 钻井是混合制造中CFRTP零件的关键后加工步骤.
研究的目的:
- 在钻井过程中调查MEX生产的CFRTP的可加工性.
- 评估切割速度和料速度对钻井力和损坏的影响.
- 为了确定CFRTP组件的最佳钻井参数.
主要方法:
- 在CFRTP样本 (3K碳纤维/PLA矩阵) 上进行系统钻探测试.
- 不同的切割速度 (50-110 m/min) 和料速度 (0.06-0.24 mm/rev).
- 使用动力计测量推力 (Fz) 和扭矩 (Mz);微观损伤分析.
主要成果:
- 增加的料率显著增加了钻孔力 (Fz,Mz),导致纤维拉出,分层和边缘变形.
- 由于PLA矩阵的热软化,更高的切割速度减少了力量,改善了纤维-矩阵相互作用.
- 损坏严重程度与机械负荷相关;低料/高速度产生更光滑的孔和保存完整性.
结论:
- 最佳的CFRTP钻探涉及低料率和高切割速度,以最大限度地减少机械负荷和损坏.
- 这些发现支持精密加工策略,以提高尺寸精度和结构可靠性.
- 该研究为CFRTP组件的先进工程应用提供了科学基础.
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