研磨テープの浮上効果を利用した磁気ディスクの加工

概要

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With the increase in memory density of the disk storages, surface roughness of magnetic media is demanded to decrease for smaller flying hight of the magnetic head. Coated magnetic media on the disk surface is conventionally finished with the abrasive tape. It has been difficult to get fine texture having surface roughness R_p less than 0.15 μm by using conventional method. In this report, the followings are described; (1) The floating phenomenon of the lubricated abrasive tape according to the increase in disk rotation has been found. (2) The grinding rate of coated magnetic material can be evaluated by measuring the amount of ground residue on the abrasive tape. (3) Surface roughness R_p of the coated magnetic disk has decreased by finishing using abrasive tape floated as same distance as the tape surface roughness R_a.
公益社団法人精密工学会の論文
1991-09-05