Abstract
An electromagnetic barrel finishing machine carries out finishing by collision of the workpiece with a magnetic medium, which moves due to the electromagnetic force of the rotating magnetic field. Although this machine is currently used in practical applications, the motion of the medium in the container has not been clarified. Here, the motion of the medium in the magnetic field was investigated to improve the finishing characteristics and to develop new types of magnetic barrel finishing. When the weight of the medium is small, it rotates only around its own axis at the source frequency. When its weight exceeds 10 g, the medium revolves along the circumferential direction of the container in addition to rotating around its own axis. Increasing the current and weight of the medium causes it to revolve at a higher speed. The rotation and revolution of the medium were clarified after examining the experimental results.
