To provide a method of mirror-polishing a complicated shape body, in which polishing is carried out even if a polishing object has a complicated shape with bumps and dips, even at a deep corner of each dip without generating stress, to finish the polishing object with a mirror surface, and to provide a mirror-polishing device.
According to the mirror-polishing method, the polishing object (specimen 3) is fixed to a bottom surface of a flow bath 2, and a polishing tool 4 is faced to the specimen 3, followed by pouring magnetic polishing solution 1 into the bath to immerse the specimen. The magnetic polishing solution 1 is mixed with nonmagnetic abrasive grains and a thickening agent such as α-cellulose. In the polishing tool 4, a permanent magnet 41 is arranged on a surface opposed to the specimen 3, and a plurality of flexible bristle materials 42 are implanted in the same to form a brush. Then the polishing tool 4 is rotated by a driving motor 11, and the flow bath 2 is suitably oscillated by an oscillation stand 8, to thereby agitate the polishing solution in the bath. Thus the brush formed of the bristle materials 42 functions to agitate the polishing solution in the dips formed in the specimen 3, and magnetic clusters generated by a magnetic field of the permanent magnet 41 press the abrasive grains, to thereby carry out polishing by relative movement of the abrasive grains.
HANAMURA REI
MATSUO YOSHIO
SHIMADA KUNIO
SHIMADA KUNIO