Norton Company

Grindwell Norton Limited

Gerald W Meyer

Mianxue Wu

Elinor B Keil

Murugesan K Kurubaran

Paul E Johnson

Channarayapatna N Thimmappaiah

A bonded-abrasive tool includes a matrix of an organic bond, abrasive grains dispersed in the organic bond and a grinding aid in the form of either an inorganic nonhalogenated filler or a hydrated filler. The inorganic nonhalogenated filler can react with free radicals released from the organic bond during grinding. The hydrated filler endothermically releases water. A coated-abrasive tool includes a flexible substrate, abrasive grains bonded to the flexible substrate, and an organic bond containing a grinding aid including an inorganic nonhalogenated filler or a hydrated filler coated on the substrate.

Abrasive grinding tools with hydrated and nonhalogenated inorganic grinding aids

Bonded abrasive products comprising alumina-based abrasive grains and a geopolymer bond system are significantly improved by providing the grain with a vitreous coating before incorporation in the geopolymer bond.

Abrasive article bonded using a hybrid bond

A resin bonded abrasive tool consists of abrasive grain and an organic bond comprising a thermosetting resin, such as epoxy resin, phenolic resin or rubber or blends thereof and a precursor filler system capable of forming in situ an active filler system by reacting under the heat generated during grinding. The organic bond optionally further comprises a filler system. A method of making the resin bonded abrasive tool consists of mixing the abrasive grain and the organic bond with the precursor filler system, pressing the resulting mixture into shape, and curing the abrasive tool at about 150 to 200.degree. C.

Growing community of inventors

Framingham, MA, United States of America

Gerald W Meyer