Abstract: In order to achieve the integrated molding of large-sized 3D composite material frames, this study developed a process-structure integrated design and optimization plan. The molding process was reasonably selected and the water-soluble mold preparation process was optimized. Performance standards for water-soluble molds that meet the molding process of large-sized 3D frame structures were formulated. The feasibility of the structural design scheme and process was experimentally verified through the production of test specimens. A 3D integrated framework configuration that balances process feasibility and structural mechanical properties was formulated and applied in the development of actual products. The product has been validated through experiments, proving the feasibility of the technical solution, which provides reference for the integrated design of support structures of space camera.

Key words: 3D composite material framework, integrated molding technology, integrated design of process and structure, water soluble mold, space camera