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使用CCF和RSM对FDM打印的短碳纤维增强尼龙进行建模和优化
Qibin Fang1, Jing Yu1, Bowen Shi2
1Department of Mechanical Engineering, Shantou University, Shantou 515063, China.
Polymers
|July 12, 2025
概括
碳纤维增强尼龙的化沉积建模 (FDM) 增强了机械性能. 优化过程参数,如温度和速度,为先进的材料应用提供了卓越的曲和冲击强度.
科学领域:
- 材料科学 材料科学 材料科学
- 添加剂制造 添加剂制造 添加剂制造
- 聚合物工程 聚合物工程
背景情况:
- 简短的碳纤维增强尼龙提供了卓越的机械性能.
- 化沉积建模 (FDM) 能够为钢筋尼龙提供先进的应用.
- 了解过程属性关系对于优化FDM组件至关重要.
研究的目的:
- 为了研究FDM打印的碳纤维增强尼龙的柔性和冲击性能.
- 优化工艺参数以提高机械性能.
- 建立可靠的模型来预测材料的行为.
主要方法:
- 使用了以面部为中心的中央复合材料 (CCF) 设计,具有四个因素和响应表面方法 (RSM).
- 作为主要的工艺参数,研究了挤出温度,床温度,印刷速度和层厚度.
- 采用可取性函数和权衡方法来实现多目标优化.
主要成果:
- 开发了二次统计模型来预测曲强度,曲模量和冲击强度.
- 确定了最佳参数: 318°C的挤出温度, 90°C的床温度, 30 mm/s的速度, 0.1 mm的层厚度.
- 达到预测的性能: 169.881 MPa 的屈曲强度,9249.11 MPa 的屈曲模量,29.659 kJ/m2 的冲击强度.
结论:
- 拟议的RSM方法可靠地预测和优化FDM打印增强尼龙的机械性能.
- 相比之前的研究,最优的参数导致了强大的和优越的机械性能.
- 这项研究有助于在苛刻的应用中使用先进的复合材料.
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