发明申请
US20090104853A1 METHOD OF MANUFACTURING DISK SUBSTRATE 有权
制造磁盘基板的方法

METHOD OF MANUFACTURING DISK SUBSTRATE
摘要:
A method of manufacturing a disk substrate includes a disk substrate forming step of forming a disk substrate; and an outer chamfering step of chamfering an outer edge of the disk substrate. The outer chamfering step includes chamfering the outer edge by bringing an end surface of a cylindrical-shaped outer chamfering grindstone having a hollow portion on its end into contact with the outer edge such that the hollow portion faces the outer edge while rotating each of the outer chamfering grindstone and the disk substrate.
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