Abrasive article for high-speed grinding operations

US9539701B2 · 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: Jan 10, 2017
• Expiry date: Mar 30, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B24D7/00
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An abrasive article includes 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 strength ratio (MOR/MOE) of at least about 0.80. Additionally, the bonded abrasive body may have a MOR of at least 40 MPa for a MOE or at least about 40 GPa and the bonded abrasive body may be capable of grinding a workpiece that includes 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).