Abrasive article for high-speed grinding operations

US9144885B2 · kind B2 · utility

Assignees

• SAINT-GOBAIN ABRASIVES, INC. · US
• SAINT-GOBAIN ABRASIFS · FR

Inventors

• Nilanjan Sarangi · Shrewsbury, US
• Renaud Fix · Paris, FR
• Stephen Woods · Stafford, GB
• Jim M. Gaffney · Worcester, US
• John Campaniello · Oxford, US
• John R. Besse · Beacon Falls, US
• Stephen E. Fox · Worcester, US

Key dates

• Filing date: Mar 30, 2012
• Grant date: Sep 29, 2015
• Expiry date: Sep 19, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/96
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An abrasive article can include a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a bond material. In an embodiment, the bonded abrasive body has a porosity of at least about 42 vol % of the total volume of the bonded abrasive body. Additionally, in an embodiment, the bonded abrasive body is capable of grinding a workpiece comprising metal at a speed of at least about 60 m/s at a material removal rate of at least about 0.4 in3/min/in (258 mm3/min/mm).