The invention provides a composite material external grid rib bearing cylinder, a forming die and a preparation method, the bearing cylinder is integrally manufactured by adopting a metal forming die through extrusion die assembly, fiber and resin prepregs are laid according to a set laying angle, and the bearing cylinder is integrally prepared mainly through pre-extrusion forming and extrusion die assembly during preparation. According to the composite material external grid rib bearing cylinder, the problems that the mode that the cylinder and the L-shaped ribs are spliced into a whole after the cylinder is formed or a traditional metal structure is complex in working procedure, the defects that the mechanical property of the splicing position is weak, and a glue joint face is prone to layering cannot occur are solved, and the composite material external grid rib bearing cylinder has better mechanical property and is lighter in weight; and the structural stability is better, and the performance requirements of aerospace can be better met.
本发明提供一种复合材料外置网格筋承力筒、成型模具及制备方法,承力筒采用金属成型模具通过挤压合模一体制成,利用纤维和树脂的预浸料按照设定的铺设角度进行铺设,制备时主要通过预挤压成型和挤压合模进行一体化制备。本发明克服了净筒成型后与L形筋拼接成一体的方式或者传统金属结构工序复杂,不会出现拼接处力学性能薄弱及胶接面容易分层缺陷等问题,本发明的复合材料外置网格筋承力筒具有更好的力学性能,且质量更加轻量化,结构稳定性更好,能更好的满足航空航天的性能需求。
Composite material external grid rib bearing cylinder, forming mold and preparation method
复合材料外置网格筋承力筒、成型模具及制备方法
05.05.2023
Patent
Elektronische Ressource
Chinesisch
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