Enhancement of the Adhesion of Wire Arc Sprayed Coatings on Carbon Fiber-Reinforced Plastic by Surface Laser Structuring

Due to their outstanding stiffness-to-weight ratio, fiber-reinforced plastics are established materials for weight reduction in the aerospace and automotive industries. To improve certain properties, such as low thermal electrical conductivity, metallic coatings can be applied polymer surface. One of methods used this purpose is spraying. Studies have shown that adhesion strength on surfaces low. strength, surface was pretreated with pulsed laser-based methods. This study describes detail process chain, resulting conditions effect wire arc sprayed copper pull-off shear tensile testing. The results show up ~200% increase laser-structured samples compared grit-blasted reference test.