Patent ID: 9266219
Filing Date: 2016-02-23
CPC Classification: B24B,B24D

Claim Text:
1. An abrasive article configured to grind a tungsten carbide workpiece, the workpiece having a fracture toughness at least about 7 MPa·m 0.5 , the abrasive article comprising: a body comprising abrasive particles contained within a bond material comprising a metal, wherein the body comprises a ratio of V wherein the abrasive particles have an average particle size in a range of between about 20 to about 60 microns; wherein during a periphery insert grinding test operation of the abrasive article on at least one edge of the tungsten carbide workpiece, the edge of the tungsten carbide workpiece has a maximum chip size of less than about 0.0025 inches and the maximum chip size is at least 8% less than the maximum chip size achieved during a periphery insert grinding test operation of a conventional metal-bonded abrasive article on the at least one edge of the tungsten carbide workpiece; and wherein the periphery insert grinding test operation is conducted at a rough feed rate of 2 inches/min and a finish feed rate of 1.0 inches/min with the abrasive article operating at 8500 SFPM and a cut depth of 0.025 inches.