复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (1): 102-108.DOI: 10.19936/j.cnki.2096-8000.20260128.014

• 设计与工艺 • 上一篇    下一篇

复合材料蜂窝夹层结构挖补修理表面平整度研究

崔立军, 孔娇月, 陈海燕, 瞿明城, 赵子平   

  1. 上海飞机制造有限公司 复合材料中心(COMAC),上海 201324
  • 收稿日期:2024-10-31 出版日期:2026-01-28 发布日期:2026-03-12
  • 作者简介:崔立军(1986—),男,硕士,高级工程师,复合材料结构损伤修理工艺技术研究,cuilijun@comac.cc。

Research on surface smoothness of composite honeycomb sandwich structure scarf repair

CUI Lijun, KONG Jiaoyue, CHEN Haiyan, QU Mingcheng, ZHAO Ziping   

  1. COMAC, Composite Center, Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201324, China
  • Received:2024-10-31 Online:2026-01-28 Published:2026-03-12

摘要: 为了保证复合材料蜂窝夹层结构挖补修理后获得较好的表面平整度,研究了安装替换蜂窝芯时不同蜂窝芯的补偿高度和固化保温温度对复合材料蜂窝夹层结构背面面板表面平整度的影响;同时还研究了填充层数量、复合材料均压板以及替换蜂窝芯芯格表面密封对修理铺层固化后表面平整度的影响。研究结果表明:替换蜂窝芯补偿高度与原结构面板外表面齐平或不大于1 mm时,背面面板可以获得较好的表面平整状态,最大凸起变形量为0.05 mm;在背面面板侧安装加热毯可以保证替换蜂窝芯固化时底部的固化温度,使用比原结构面板材料固化温度低的胶膜进行蜂窝芯粘接时背面面板可以获得较好的表面平整状态;在替换蜂窝芯和结构修理铺层之间安装3层填充层并且固化使用0.4 mm厚的复合材料均压板,固化后修理铺层可以获得较好的表面平整状态,表面凹陷变形量为0.13 mm;安装结构修理铺层前使用糊状灌封胶对替换蜂窝芯芯格表面进行密封,固化后修理铺层可以获得较好的表面平整状态。

关键词: 复合材料, 蜂窝夹层结构, 挖补修理, 表面平整度

Abstract: In order to ensure better surface smoothness of the composite honeycomb sandwich structure after scarf repair, in this paper, the effects of the compensation height of different replacement honeycomb cores and the curing temperature on the surface smoothness of the back panel of the composite honeycomb sandwich structure were studied when the replacement honeycomb cores were installed. Meanwhile, the effects of the quantity of filler ply, the composite caul plate, and the surface sealing of replacement honeycomb core hole on the surface smoothness of the cured repair ply were also studied. The research results show that when the height of replacement honeycomb core is equal to the outer surface of the original structure panel or not more than 1 mm, the back panel can obtain a better surface smoothness, and the maximum bulge deformation is 0.05 mm; installing a heating blanket on the back panel side can ensure the curing temperature at the bottom when the replacement honeycomb core cures. In addition, the back panel can obtain a better surface smoothness when the replacement honeycomb core is bonded by using adhesive film with a lower curing temperature than the original material of panel. When three filler plies are installed between the replacement honeycomb core and strucuture repair ply and a 0.4 mm caul plate is used for curing the repair ply, the cured repair ply can obtain a better surface smoothness, and the depression depth is 0.13 mm; when the replacement honeycomb core hole is sealing with potting compound before installing the structure repair ply. The cured repair ply can obtain a better surface smoothness.

Key words: composite, honeycomb sandwich structure, scarf repair, surface smoothness

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