抄録
The elucidation of the segregation that arises in the barrel polishing is desired. This study concerns the planetary barrel that simultaneously rotates around the horizontal axis and revolves around vertical axis. Three kinds of particles of different material and sizes were filled into the barrel. Then, using experiments and Discrete Element Method (DEM), the behavior of these particles was investigated. And the characteristics of segregation were also examined by the distribution rates of each of these particles. As the result, it was demonstrated that the particles segregate when three kinds of that were filed even into the rotary barrel.