| 摘要 |
PURPOSE:To mirror-surface-work the cylindrical surface of a magnetic head with high accuracy by installing a dust removing mechanism on the side where the abrasive grain layer of a polishing tape does not exist and on the upstream side of a back-up plate. CONSTITUTION:When the cylindrical surface of a workpiece 1 consisting of polycrystalline ferrite as main boldy is mirror-surface-worked, polishing is carried out by the swing by a swinging mechanism 3, traveling of a polishing tape 4, and the working load P applied onto a back-up plate 7. In this case, the polishing tape 4 generally consists of a polyester film as base, and static electricity is easily generated, and the dusts in the air easily adhere. Therefore, though the dusts on the worked surface side is of the polishing tape 4 can be removed by the supply of working liquid, the dusts adhering on the reverse surface is transported to the back-up plate 7 and coagulated, and scars are generated on the worked surface. Then, a dust removing mechanism 12 such as rotary body having a brush or air blasting pipe is installed. Thus, the cylindrical surface can be mirror-surface-worked with high accuracy. |
