Cutting element, cutting edge and method of making cutting edges
AssigneeSandvik Milford Corp.
InventorHakan Hellbergh
Life of this patent
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Abstract
A cutting element, cutting edge and method of making cutting edges is disclosed. A compound material, preferably containing 30-70 vol % of carbides, nitrides and/or carbonitfides, is co-extruded with a steel cover. The co-extended product is cut into tip blanks whose outer surface corresponds to surfaces of a cutting element body. The steel cover is brazed to corresponding contact surfaces on bodies of a cutting element, e.g., a saw blade, and the cutting edges are ground by removing portions of the steel cover and the compound material.
Claims7
Method of making cutting edges, comprising the steps of co-extruding a compound material with a steel cover, cutting the co-extruded material into tip blanks, securing the steel cover of the blanks to contact surfaces on a body, said contact surfaces conforming to the shape of the steel cover, and grinding portions of the steel cover and the compound material to form the cutting edges.
Dependencies are inferred from the claim text.