Abstract
In order to polish complicated-shaped inner surfaces of molds, a new polishing method with magnetic congelation liquid was invented. Magnetic congelation liquid which is magnetic fluid at high temperature, can be solidified by cooling. If abrasives are in the magnetic congelation liquid, the distribution of abrasives in the liquid can be controlled by magnetic field. Therefore we can make a special polishing tool which has well arranged abrasives inside after cooling. In order to know the fundamental polishing properties of this new polishing tool, brass plate was polished. The polishing tool was pressed and rotated against the brass plates in specified polishing time. After many experiments, it was found that this type of polishing tool provided enough removal rate and surface roughness. Also, it was confirmed that the alignment of abrasives in the polishing tool strongly affected removal rate and surface roughness.
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