Property of Metallic Hollow Sphere Structures made by Adhesive Bond

Abstract

Metallic hollow sphere structure (MHS structure) is one of ultra-light porous metals. The ultra-light structure has a possibility to save the fuel consumption because car body can be lightened without reducing the rigidity and the performance of absorbing collision energy. Although the structures are made by powder metallargy in the conventional method, we propose a new method, in which MHSs are combined by adhesive bond. This method has advantages over the conventional one because the structures can be easily inserted into the car parts. To apply the structure by the proposed method to the car parts, the mechanical properties of the structure are measured. By compression test it is proved that the energy absorbing charactoristies is very high for the structure in which the MHS is filled in a thin walled pipe (0.1mm).