Disk drive cover
AssigneeMetalform Asia Pte Ltd.
InventorsSong Ser, Weng Leong
Life of this patent
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Abstract
The present invention is directed to a top cover for a hard disk drive. According to one embodiment of the present invention, a top cover for a hard disk drive is fabricated by stamping a steel sheet. The top cover is formed with a surface hardness of at least about 50 HRC. Top covers fabricated according to the present invention have a relatively high surface hardness and stiffness, hence are better able to prevent scratch and resist deflection.
Claims18
A top cover for a disk drive, wherein the top cover is stamped from a steel sheet and wherein the top cover has a surface hardness of at least about 50 HRC.
A top cover for a disk drive, wherein the top cover is fabricated by a method comprising:
- stamping a steel sheet to form a shaped workpiece;
- heating the shaped workpiece to a first temperature of about 850° C.;
- cooling the shaped workpiece to room temperature;
- heating the shaped workpiece to a second temperature of about 250° C.;
- and
- cooling the shaped workpiece to room temperature.
A method for fabricating a top cover of a disk drive, comprising:
- stamping a steel sheet to form a shaped workpiece, wherein the steel sheet has a surface hardness of about 20 HRC or lower,
- heat-treating the shaped workpiece to form the top cover having a surface hardness higher than that of the steel sheet.
Dependencies are inferred from the claim text.