基于自适应配合模具的复合材料加筋壁板共胶接技术研究

Co-Bonding Technology of Composite Stiffened Skin Based on Self-Adaptive Mould

为解决大型复合材料加筋壁板筋条/蒙皮一体化成型过程中的型面配合问题,提出一种基于自适应配合模具的复合材料加筋壁板共胶接方法。以固化后的蒙皮外形面作为成型面,将未硫化的橡胶粘贴在钢模上,硫化形成带有配合型面自适应模具。该模具能够保障加筋壁板共胶接过程中筋条与蒙皮精确配合。通过力学性能测试,验证了该工艺方法不会对复合材料蒙皮的力学性能带来损失。同时通过对橡胶材料的硬度和压缩变形率进行测量,验证了橡胶能够满足自适用配合模具要求。此外,试验结果还表明,基于本工艺方法制造的试验件内部无分层脱粘问题。

In order to improve the fitting accuracy of the stiffened skin profile,an adaptive fitting method based on the self-adaptive mould was proposed.The rubber was treated as the fitting surface.It was vulcanized and its surface was formed with that of the cured composite skin.Then,the rubber was attached to the steel mould to form an adaptive mould.The results showed that the cooperated clearance and interference were eliminated by the adaptive fitting of the unvulcanized rubber.There were no negative effects on the mechanical properties of composites,and the mechanical properties of the rubber could satisfy the requirement of adaptive fitting.What’s more,the effect of the method on the properties of composites was evaluated.