POLISHING DEVICE FOR MAGNETIC HEAD

摘要

PURPOSE:To attain a polishing process with high efficiency in a constant radius state of high accuracy by giving the radius polishing to the corner of contact face of a magnetic head against a magnetic recording medium with a contact secured to a lapping tape so that the coincidence is obtained between the direc tion of the head and the driving direction of the recording medium. CONSTITUTION:A lapping tape 3 is set between guide rolls 1 and 2 engaged with each other through their recess and projection parts. Thus the tape 3 is deformed into the shapes of both rolls 1 and 2. The recess/projection forms of rolls 1 and 2 is approximate or equal to the radius shape of the contact face of a magnetic head against a recording medium which requires the processing. Thus the apexes of the recess/projection parts of the polishing sur face of the deformed tape 3 have no contact with the part of the head requiring no processing. Then the magnetic head is fixed to a tool 5 and has a slight touch to the tape 3 so that the coincidence is secured between the head direction and the driving direction of the recording medium. Thus the head is polished in an radius shape. In this case, the polishing time is set by a timer. Then the tape 3 is moved up after polishing to secure a fixed radius state.