工艺与制造英文2024被引 9
狭缝结构喷嘴热气枪辅助自动铺纤成型碳纤维/PEEK热塑性复合材料温度场特性
Temperature field characteristics of CF/PEEK thermoplastic composites formed by automated fiber placement using hot gas torch with slit structure nozzle
Ziang Jin, Shouzheng Sun, Sunil C. Joshi, Zhenyu HAN, Hongya Fu · Nanyang Technological University
摘要整理
原位固化成型高性能热塑性复合材料的自动铺纤技术(AFP)在航空航天领域具有重要应用价值。铺纤过程中加热温度对成型件质量影响显著。本研究建立了狭缝结构喷嘴热气枪(SSNHGT)辅助AFP加热碳纤维(CF)/聚醚醚酮(PEEK)复合材料的三维热传递有限元模型。分析了气体流量、传热距离和铺纤速度对加热温度的影响规律。研究结果表明：随气体流量增加，CF/PEEK整体温度先升高后降低；随传热距离和铺纤速度增加，整体温度单调降低。气体流量对被加热CF/PEEK温度的影响最大，其次为铺纤速度，传热距离影响最小。该模型可扩展应用于其他热气枪辅助AFP成型的纤维增强聚合物复合材料，为后续加热温度控制的工艺参数优化提供指导。
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