| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique for a magnetic polishing having excellent machining precision and high efficiency. <P>SOLUTION: A magnetic fluid 11 composing of abrasive grains, magnetic grains, and dispersion media is held on the tip end of a polishing tool 3 by a magnetic force, a polishing tool 3 and a workpiece W are relatively moved while keeping a gap of a constant distance between the tip end of the polishing tool 3 and the surface of the workpiece W, and the magnetic fluid 11 interposed in the gap is abutted to the surface of the workpiece W. The surface is polished by rotating the polishing tool 3 while keeping the positional relationship between the polishing tool 3 and the workpiece W so that the polishing tool 3 is always turned to the vertical direction with respect to the tangent of a machining point of the surface of the workpiece W. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
