Grinding wheel core

Claim 2

IN A GRINDING WHEEL WITH A PERIPHERAL ABRASIVE SECTION, A CORE COMPRISING A PARTICULATE FIRST METALLIC COMPONENT, A PARTICULATE SECOND METALLIC COMPONENT, AND A PARTICULATE SYNTHETIC THERMOSETTING RESIN, ALL BONDED TOGETHER, WHEREIN THE FIRST METALLIC COMPONENT COMPRISES FROM 40 TO 90 CORE VOLUME PERCENT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND COPPER AND A MIXTURE THEREOF, THE SECOND METALLIC COMPONENT COMPRISES FROM 2 TO 35 CORE VOLUME PERCENT OF A METAL SELECTED FROM THE GROUP CONSISTING OF TIN AND AN ALLOY OF TIN WITH A MELTING POINT AT OR LESS THAN 350*C, AND THE RESIN COMPRISES FROM 5 TO 30 CORE VOLUME PERCENT.

Claim 3

A core as described in claim 1, wherein the first metallic component comprises from 58 to 74 core volume percent of a metal selected from the group consisting of aluminum and copper and a mixture thereof, the second metallic component comprises from 8 to 16 core volume percent of a metal selected from the group consisting of tin and an alloy of tin with a melting point at or less than 350*C, and the resin comprises from 18 to 26 core volume percent.

Claim 4

In a grinding wheel with a peripheral abrasive section, a core comprising a particulate first metallic component, a particulate second metallic component, a particulate synthetic thermosetting resin, and a particulate solid lubricant, all bonded together, wherein the first metallic component comprises from 40 to 90 core volume percent of a metal selected from the group consisting of aluminum and copper and a mixture thereof, the second metallic component comprises from 2 to 35 core volume percent of a metal selected from the group consisting of tin and an alloy of tin with a melting point at or less than 350*C, the resin comprises from 5 to 30 core volume percent, and the solid lubricant comprises from 0 to 15 core volume percent of solid lubricant selected from the group consisting of graphite, hexagonal boron nitride, and polytetrafluoroethylene, or a mixture thereof.

Claim 5

In a grinding wheel with a peripheral abrasive section, a core comprising a particulate first metallic component, a particulate second metallic component, a particulate synthetic thermosetting resin, and a particulate solid lubricant, all bonded together, wherein the first metallic component comprises from 40 to 90 core volume percent of a metal selected from the group consisting of aluminum and copper and a mixture thereof, the second metallic component comprises from 2 to 35 core volume percent of a metal selected from the group consisting of tin and an alloy of tin with a melting point at or less than 350*C, the resin comprises from 5 to 30 core volume percent, and the solid lubricant comprises from 0 to 15 core volume percent of solid lubricant selected from the group consisting of graphite, hexagonal boron nitride, and polytetrafluoroethylene, or a mixture thereof.

Claim 6

A core as described in claim 3, wherein the first metallic component comprises from 54 to 70 core volume percent of a metal selected from the group consisting of aluminum and copper and a mixture thereof, the second metallic component comprises from 8 to 16 core volume percent of a metal selected from the group consisting of tin and an alloy Of tin with a melting point at or less than 350*C, the resin comprises from 14 to 22 core volume percent, and the solid lubricant comprises from 2 to 10 core volume percent.