Method of abrading both faces of work piece
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United States of America Patent
Stats
-
Nov 18, 2003
Grant Date -
May 16, 2002
app pub date -
Nov 9, 2001
filing date -
Nov 15, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method for abrading a work piece with a fixed load including a first abrading process in which pressure of a cylinder chamber of a cylinder unit suspending an upper abrasive plate is adjusted in order to apply first pressure to the work piece via the upper abrasive plate without applying the full weight of the upper abrasive plate and a second abrading process in which the pressure of the cylinder chamber is readjusted in order to to apply second pressure which is higher than the first pressure to the work piece via the upper abrasive plate without applying the full weight of the upper abrasive plate.
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