复合材料树脂膜熔渗(Resin film infusion,RFI)工艺是复合材料成型工艺中广泛使用的一种整体制造技术,非常适合制造大型、带加强筋且具有复杂型面的航空结构件.本文选取了一种典型的复合材料帽型加筋壁板,完成工装结构及工艺流程等整体成型工艺设计,同时对不同树脂膜位置和固化压力下树脂渗透过程进行模拟仿真,并根据模拟结果选择合理的树脂膜位置和固化压力,最终根据所选方案完成工艺试验验证,典型件表观质量和无损检测均合格,验证了帽型加筋壁板RFI整体成型工艺设计及模拟分析的有效性.
Process Design and Verification of RFI Integrated Molding of Composites Hat Stiffened Panel
Resin film infiltration(RFI)process is a widely used integrated manufacturing technology in composite material molding,which is very suitable for manufacturing large,reinforced,and complex aviation structural components.This article selected a typical composite hat stiffened panel,completed the integrated design of the fixture structure and process flow,and simulated the resin penetration process under different resin film positions and curing pressures.Based on the simulation results,reasonable resin film positions and curing pressures were selected.Finally,process experiments were completed according to the selected scheme,and the apparent quality and non-destructive testing of the typical parts were qualified,verifying the effectiveness of RFI integrated design and simulation analysis for hat stiffened panel.
CompositesHat stiffened panelRFI integrated moldingProcess designSimulationLiquid molding of composites
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