Edge finishing process for glass or ceramic disks used in disk drive data storage devices

The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both the inner and outer edges of the...

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Hauptverfasser:	PRIEBE THOMAS E, PAURUS DAVID C, HAGAN JAMES A, KRUGER BRUCE PETER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GLASS GRINDING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS PHYSICS POLISHING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING
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creator	PRIEBE THOMAS E PAURUS DAVID C HAGAN JAMES A KRUGER BRUCE PETER
description	The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both the inner and outer edges of the disk are finished. Edge finishing is preferably achieved in a two-stage process, involving a coarse grind and a ductile grind, using air bearing spindles rotated at high speed for grinding wheels and workpiece. Preferably, the grinding wheels are shaped to provide a radius at the juncture of the circumferential edges and flat disk surfaces.
format	Patent
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Preferably, the material is glass, and both the inner and outer edges of the disk are finished. Edge finishing is preferably achieved in a two-stage process, involving a coarse grind and a ductile grind, using air bearing spindles rotated at high speed for grinding wheels and workpiece. Preferably, the grinding wheels are shaped to provide a radius at the juncture of the circumferential edges and flat disk surfaces.</description><edition>7</edition><language>eng</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; DRESSING OR CONDITIONING OF ABRADING SURFACES ; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ; GLASS ; GRINDING ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; METALLURGY ; MINERAL OR SLAG WOOL ; PERFORMING OPERATIONS ; PHYSICS ; POLISHING ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS ; TRANSPORTING</subject><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030320&DB=EPODOC&CC=US&NR=2003054736A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030320&DB=EPODOC&CC=US&NR=2003054736A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PRIEBE THOMAS E</creatorcontrib><creatorcontrib>PAURUS DAVID C</creatorcontrib><creatorcontrib>HAGAN JAMES A</creatorcontrib><creatorcontrib>KRUGER BRUCE PETER</creatorcontrib><title>Edge finishing process for glass or ceramic disks used in disk drive data storage devices</title><description>The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. 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subjects	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GLASS GRINDING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS PHYSICS POLISHING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING
title	Edge finishing process for glass or ceramic disks used in disk drive data storage devices
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