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US 12,023,783 B2Granted
Abrasive articles including a blend of abrasive particles and method of forming and using the same
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorsDarrell K. Everts, Doruk O. Yener
Life of this patent
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Abstract
An abrasive article including a substrate; and an abrasive layer overlying the substrate, where the abrasive layer includes a blend of abrasive particles including a first type of abrasive particle comprising a polycrystalline material and having a first average friability F1, and a second type of abrasive particle comprising a polycrystalline material and having a second average friability, F2, where the blend comprises an average friability difference, ΔF=|F1−F2|, within a range of at least 0.5% to not greater than 80%.
Claims18
A method of forming an abrasive article comprising:
- providing a backing material;
- disposing a binder over the backing material;
- dispersing a blend of abrasive particles comprising a plurality of first type of abrasive particles on the binder layer and dispersing a plurality of second type of abrasive particles on the binder layer;
- wherein the first type of abrasive particle has a first average friability F1 and the second type of abrasive particle has a second average friability F2;
- and wherein the blend of abrasive particles comprises an average friability difference, ΔF=|F1−F2|, within a range of at least 0.5% to not greater than 80%,
- wherein the blend of abrasive particles further comprises additive particles comprising brown fused alumina,
- wherein the first type of abrasive particle comprises a first ceramic alumina comprising a loose pack density of 1.6-1.8 g/cc, and wherein the second type of abrasive particle comprises a second ceramic alumina comprising a loose pack density within a range of 1.78-1.88 g/cc.
4 more elements
Dependencies are inferred from the claim text.