| 摘要 |
PURPOSE:To manufacture metallic polishing bodies each having a superior finishing polishing effect in large quantities by a photoetching method at a low cost, by relatively moving each metallic blank and an etching soln. to form the etched parts in a curved sectional shape and by using the remaining protrusions as teeth. CONSTITUTION:A photoresist film 2 is coated on a metallic blank 1 and prebaked. A tooth pattern is drawn and scaled down, and a precise photo plate having the pattern to be formed is mounted on the film 2 as a photomask 3 and exposed. After carrying out development, the photoresist film remaining on the blank 1 is baked. Thus, holes 4 having the same shape as the pattern of the photomask 3 are pierced, and metallic parts 5 are disclosed. While rotating the blank 1, an etching soln. is sprayed to form curved recesses 6 by etching and to remove the remaining film 2. Only the surface layer part having the formed teeth is finally quench-hardened. |
