Hard disk drive cover with differential inner and outer surface roughness
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United States of America Patent
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Mar 14, 2017
Grant Date -
Oct 22, 2015
app pub date -
Apr 17, 2014
filing date -
Apr 17, 2014
priority date (Note) -
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Abstract
A hard disk drive cover with a smooth bottom (inner) surface and a textured outer surface is provided for covering a hard disk drive base assembly. A method of manufacturing the hard disk includes providing a metal material. The metal material is worked into a metal strip having a textured surface and an opposing smooth surface. A hard disk drive cover is stamped from the worked metal strip with the smooth surface being the inner surface of the stamped cover. The smooth inner surface of the hard disk drive advantageously enhances cleanliness within the base assembly. The smooth surface finish on the inner surface also advantageously enhances shear strength of a bond between a gasket and the inner surface.
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