摘要
在复合材料加筋壁板的成型中有一种工艺方案是将已固化的长桁与未固化的蒙皮进行共胶接。为了解决采用此工艺时长桁下凸缘边缘处蒙皮铺层面外褶皱的问题,采用了长桁下凸缘倒角的制造方法,提高了产品的质量稳定性。通过对蒙皮皱褶部位的剖切取样,再采用显微观察的手段测量褶皱的几何尺寸,探索了不同倒角的长桁下凸缘边缘与蒙皮共胶接后铺层的褶皱程度,并分析了褶皱的形成原因。结果表明:对长桁下凸缘边缘倒角后可以明显改善蒙皮褶皱的情况,并且倒角越锐利蒙皮的褶皱程度越小。根据实际情况,在选取特定的角度对长桁下凸缘进行倒角后,可以在简化工艺的同时有效控制蒙皮褶皱的幅度。
In the process of forming a composite stiffened panel,there is a process of curing the stringer and then co-bonding with the uncured skin.This process requires to reduce the wrinkle of the skin at the edge of the stringer flange.In order to optimize the manufacturing process of the panel and improve the process stability of the product,the method of manufacturing the panel by tapering the flange of the stringer is explored.By sampling the wrinkle section and measuring the geometrical dimensions of the wrinkles by microscopic observation,the trend of wrinkling of the skin after different tapering angles was explored.The results show that the skin wrinkle can be significantly reduced after tapering the edge of the stringer,and the sharper the tapser is,the smaller the wrinkles are.According to the actual situation,after selecting a specific angle to chamfer the stringer flange,the amplitude of the skin wrinkle can be effectively controlled while simplifying the manufacturing process.
作者
薛向晨
王犇
俞天奇
胡江波
XUE Xiang-chen;WANG Ben;YU Tian-qi;HU Jiang-bo(AVIC Composites Co.,Ltd.,Beijing 101300,China)
出处
《复合材料科学与工程》
CAS
北大核心
2020年第4期106-111,共6页
Composites Science and Engineering
关键词
褶皱
倒角
斜坡
长桁
共胶接
辅助材料
架桥
复合材料
wrinkle
taper
chamfer
stringer
co-bonding
auxiliary material
bridge
composite
