Efficient Manufacturing Method of CFRP Corrugation by Using Electro-Activated Deposition Resin Molding

Abstract

CFRP corrugation structures are used for various purposes, and application to morphing wing has recently been drawing attention. However, an effective manufacturing method for the CFRP corrugation has not established. Vacuum-assisted resin transfer molding (VARTM) method can decrease manufacturing cost, but it cannot be applied for corrugation since vacuum bagging is impossible. Therefore, the conventional method to laminate prepreg and consolidate by using autoclave has been applied. In this study, by using electro-activated deposition resin molding, it was confirmed that CFRP corrugation structures could be easily manufactured. Neither autoclave nor vacuum bagging was necessary. The corrugation and corrugated core sandwiches with different pitches were fabricated and mechanical properties were investigated.