衝撃荷重を利用した打抜きリベット締結法によるCFRP/A6061継手の作製と継手強度

抄録

In recent years, the demand for weight reduction in the field of transportation equipments has been increasing along with the rise of global environmental issues. Although, due to issues such as productivity, CFRP is rarely used as a stand-alone material and is generally used in the right places for the right materials. Therefore, the joining of dissimilar materials with metallic materials is essential. In this study, dissimilar material joints between CFRP and A6061 were fabricated using the punching rivet method with the impulsive load. Compared to the conventional riveting method, the punching rivet method does not require drilling of the material to be joined, and the punching and fastening can be performed almost simultaneously. To increase the seating pressure and improve joint strength, the tip of the rivet shaft was inclined to promote the outward deformation of the tip of rivet shaft. The part of rivet holder hole was chamfered. From the experimental result, joint strength was improved.