In the automotive manufacture industries weight reduction has become an essential factor due to the national and international regulations for the fuel efficiency. Using carbon fiber reinforced plastic (CFRP) on automotive is one of the reasonable strategies for the regulatory response since not only it can contribute to the light weighting but also it can improve driving performance, assembly time, shock safety and stability. Conventional welding and mechanical joining technologies are inadequate in CFRP application on the vehicle manufacture because of CFRP laminate damaging in a machining process and stress concentration at mechanical joints. The adhesive bonding technologies that can distribute the stress evenly at a face to face joint have been considered as a solution for those problems on CFRP application. However, using CFRP with adhesives for the application is not a simple problem because of the adhesion disturbance factors on CFRP surface and the resin weakness on shock in conventional CFRPs. In the presentation, several types of CFRP manufacturing method and those applications are reviewed for understanding backgrounds. Continuously, some novel surface treatment methods for enhancing adhesion performance and CFRP resin modification for reinforcing shock resistance are suggested, and adhesion performances with surface analysis are reviewed and discussed.
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