Research on energy conservation and emission reduction technology of free-form surface thermosetting forming composites

Thermosetting composites will produce spring-back deformation after curing, and the mold is the key factor affecting the curing of components. In this paper, the solidification and spring-back deformation process of free-form surface composite parts are simulated by finite element simulation. By comparing the deformation of components under invar steel mold, 304 stainless steel mold and composite mold, the influence of thermal expansion coefficient, mold structure and molding process on the curing deformation of composite materials was analyzed, and the optimal molding scheme of free-form surface composite parts was obtained.