Abstract
The elucidation of the segregation that arises in the barrel finishing is desired. This study concerns the planet barrel with rotation of the horizontal and vertical axis circumference. The barrel was filled with two groups of objects of differing material and diameter, and the behavior of objects was examined by experiment and simulation using DEM (Discrete Element Method). Then, the cause of the segregation was examined in comparison with experimental and simulation result. As the result, experiment and simulation by DEM showed the good coincidence, and two groups of objects segregated for running direction of the barrel in front and rear.
