Analysis of Behavior on 2 kinds of Particles in Planetary Barrel : Particle Flow and Segregation with Centrifugal Force(Machine Elements, Design and Manufacturing)

Abstract

Barrel polishing is an extremely efficient processing method for surface smoothing treatment of a large number of workpieces. However, workpieces and grinding materials may separate depending on the processing conditions. Therefore, examination of the processing conditions using dynamic analysis of the behaviors of workpieces and grinding materials is strongly desired. In this study, the behavior of the particles in the planetary barrel that simultaneously rotates around a horizontal axis and revolves around a vertical axis was examined through experiments and simulations using the discrete element method (DEM). The center of the rotary barrel was set up so that the centrifugal force might act on the particles in this barrel. As a result, it was demonstrated that the distribution of two kinds of particles might be replaced by setting position of the center of the rotary barrel even if in same combination of particles.