For closed-hole panels such as hat-stiffened panels, it is inevitable to use mandrels during the manufacturing process. However, the uniformity of pressure transmission of the silicone rubber mandrel with the prefabricated hole is not good, the vacuum bag mandrel is easy to be broken and wrinkled, the water-soluble mandrel is high in cost, and the invar steel metal mandrel is difficult to demold. To solve these problems, this article proposed a new method for co-curing carbon fiber-reinforced resin matrix composite hat-stiffened panels by using a silicone airbag as a mandrel through autoclaves. Firstly, the thermo-force-flow multi-field coupling finite element model of co-curing carbon fiber-reinforced polymer (CFRP) hat-stiffened panels was established by using finite element software. The co-curing process of hat-stiffened panels was simulated and studied. The influence of different thickness of silicone airbag mandrels on the wall thickness and pressure of the workpiece were found to be relatively uniform in the new process. Then, the autoclave experiment was carried out to verify the correctness of the finite element model. Lastly, the interfacial bonding strength test was carried out to verify the mechanical properties of the parts. In summary, the practicability of co-curing CFRP hat-stiffened panels with silicone airbag male mandrels was proved in this article. The precision of CFRP hat-stiffened panel was efficiently promoted by this new process.

对于诸如帽子加硬板的闭孔板，在制造过程中不可避免地使用心轴。但是，具有预制孔的硅橡胶心轴的压力传递的均匀性不好，真空袋心轴容易破裂和起皱，水溶性心轴成本高，并且殷钢钢金属心轴困难。脱身。为了解决这些问题，本文提出了一种新方法，该方法通过使用有机硅气囊作为通过高压釜的心轴来共固化碳纤维增强树脂基复合材料帽子加固板。首先，利用有限元软件建立了共固化碳纤维增强聚合物（帽子）板的热力流多场耦合有限元模型。模拟并研究了帽子加硬板的共固化过程。在新工艺中，发现不同厚度的硅胶气囊心轴对工件壁厚和压力的影响相对均匀。然后，进行了高压灭菌器实验，以验证有限元模型的正确性。最后，进行界面粘合强度测试以验证零件的机械性能。综上所述，本文证明了将CFRP帽子加硬板与硅胶安全气囊芯棒共固化的实用性。这一新工艺有效地提高了CFRP帽子加固板的精度。在新工艺中，发现不同厚度的硅胶气囊心轴对工件壁厚和压力的影响相对均匀。然后，进行了高压灭菌实验，以验证有限元模型的正确性。最后，进行界面粘合强度测试以验证零件的机械性能。综上所述，本文证明了将CFRP帽子加硬板与硅胶安全气囊芯棒共固化的实用性。这一新工艺有效地提高了CFRP帽子加固板的精度。在新工艺中，发现不同厚度的硅胶气囊心轴对工件壁厚和压力的影响相对均匀。然后，进行了高压灭菌器实验，以验证有限元模型的正确性。最后，进行界面粘合强度测试以验证零件的机械性能。综上所述，本文证明了将CFRP帽子加硬板与硅胶安全气囊芯棒共固化的实用性。这一新工艺有效地提高了CFRP帽子加固板的精度。本文证明了将CFRP帽子加硬板与硅胶气囊阳模芯共固化的实用性。这一新工艺有效地提高了CFRP帽子加固板的精度。本文证明了将CFRP帽子加硬板与硅胶气囊阳模芯共固化的实用性。这一新工艺有效地提高了CFRP帽子加固板的精度。