At present, a commercially available magnetic barrel machine equipped with permanent
magnets has some faults arising from constructional reason. That is, grinding or finishing ability is
different from place to place in the machining region, resulting in the limitation on the region we can
use in the container of workpieces. Therefore, in this research, authors made the new magnetic barrel
machine equipped with three dimensional (3D) magnet arrangement to overcome these faults. The
grinding ability of the new 3D magnetic barrel machine converted was experimentally examined, and
compared with that of the traditional magnetic barrel machine. As a result, it was shown that we can
use much broader region in the new 3D machine. It was also shown that the grinding ability became
higher. The distribution of barrel media in action was recorded by means of a high speed video
camera. It was clarified that the media rose up higher and were distributed more uniformly in the
container by the effect of the magnet block newly set up. It was supposed that this must be the reason
for the above-mentioned improvement of grinding ability.
Visualization of Welding Phenomena with High Speed Video Camera and X-Ray Transmission Real-Time Observation System
