Metal bonded grinding wheel containing diamond or CBN abrasive
AssigneeNorton Company
InventorEdgar B. Carver
Life of this patent
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Abstract
An improved grinding wheel employing premium abrasive (diamond or cubic boron carbide) is made by employing a metal bond made from aluminum, zinc, copper, and tin, and including up to 50% of a dry film lubricant filler. The abrasive elements produced are particularly useful to form cup wheels for the dry grinding of carbide and tool steel.
Claims4
A grinding wheel including an abrasive portion of diamond abrasive grits, or cubic boron nitride grits bonded in a metal matrix, said matrix consisting of metallic phase and up to 50% by volume, a dispersed particulate lubricant filler, said metal phase consisting essentially of a hot-pressed mixture of finely particulate aluminum 5 to 30%, zinc 10 to 35%, copper 20 to 70%, and tin 5 to 30%, all by volume.
Dependencies are inferred from the claim text.