摘要 |
PROBLEM TO BE SOLVED: To provide a method for effectively and efficiently removing/reducing burrs which can be minute metallic chips causing a problem in operating a hard disk drive, and which can not be removed completely with a regular barrel polishing, especially burrs which are produced in a microfabricated part causing the problem in yoke parts of a voice coil motor for large capacity hard disk drive, and to provide the yoke parts of the voice coil motor for hard disk drive in which such burrs are reduced as far as possible. SOLUTION: In this method for removing the burrs present on surfaces of the yoke parts of the voice coil motor for hard disk drive, after part or the whole of edge portions present near the boundary of open space where barrel polishing particles reach in the barrel polishing and dead space where the barrel polishing particles do not reach are worked into the shape of a curved face or a tapered face among edge portions of the yoke parts, they are subjected to the barrel polishing. Consequently, according to this method, the burrs which can be the minute metallic chips causing the problem in operating the hard disk drive, and which can not be removed completely with the regular barrel polishing, especially the burrs which are produced in the microfabricated part causing the problem in the yoke parts of the voice coil motor for large capacity hard disk drive can be effectively and efficiently removed. COPYRIGHT: (C)2006,JPO&NCIPI |