Optimización del proceso de infusión de resina mediante el control de la velocidad del frente de flujo en materiales compuestos reforzados con fibra

Resumen

This thesis presents a novel methodology to manufacture composites by Resin Infusion Process through flow-front velocity control. It is based on the relation between the flow front velocity and the final void content in composites. A specifically developed control system allows to perform the impregnation process using the optimum flow front velocity. In this implementation, it is applied on both conventional laminates and 3D reinforced laminates by stitching. As a result, the tensile and impact properties have shown highlighted improvements. In addition, stitching itself has shown some advantages from the process point of view. Thus, it means a significant advance in the manufacturing process, which derives into higher mechanical properties, reliability, weight reduction and more efficient use of resources. The system also brings a certain level of automation to the process which is characterised by its high level of handwork.