Lapping plate resurfacing abrasive member and method
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United States of America Patent
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Dec 29, 2009
Grant Date -
Mar 8, 2007
app pub date -
Sep 7, 2006
filing date -
Sep 8, 2005
priority date (Note) -
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Abstract
A lapping machine includes a lapping plate, and a workpiece carrier with a workpiece-holding hole disposed on the plate, a workpiece being fitted within the hole in the carrier. The workpiece is lapped while the plate and the carrier are individually rotated and loose abrasive grains are fed onto the plate. A synthetic resin-based elastic abrasive member having a Rockwell hardness (HRS) in the range of −30 to −100 is effective for resurfacing the lapping plate.
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