Patent ID: 6755729
Filing Date: 2004-06-29
Classification: B24D,C09K

Abstract:
An abrasive segment for a segmented grinding wheel, said abrasive segment comprising:a composite including a plurality of superabrasive grains and a metal bond matrix sintered together, said composite having a plurality of interconnected pores disposed therein, said composite including from about 0.5 to about 25 volume percent abrasive grain, from about 19.5 to about 49.5 percent metal bond and from about 50 to about 80 volume percent interconnected porosity; said metal bond matrix including from about 35 to about 70 weight percent copper, from about 30 to about 65 weight percent tin, and from about 0.2 to about 1.0 weight percent phosphorus, wherein said plurality of superabrasive grains are selected from the group consisting of diamond and cubic boron nitride, said superabrasive grains having an average particle size of less than about 300 microns.