Porous abrasive articles with agglomerated abrasives
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United States of America Patent
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-
Sep 9, 2008
Grant Date -
Jul 20, 2006
app pub date -
Jan 12, 2006
filing date -
Apr 11, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A bonded abrasive tool, having a structure permeable to fluid flow, comprises sintered agglomerates of a plurality of abrasive grains and a binding material, the binding material being characterized by a melting temperature between 500 and 1400.degree. C., and the sintered agglomerates having a loose packing density of .ltoreq.1.6 g/cc and three-dimensional shape; a bond material; and about 35-80 volume % total porosity, including at least 30 volume % interconnected porosity. Methods for making the sintered agglomerates and abrasive tools containing the sintered agglomerates are described.
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