Cutting tool, manufacturing method for cutting tool, and method for manufacturing cut product using cutting tool
AssigneeKYOCERA Corporation
InventorHiroshi Ogawa
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Abstract
A cutting tool based on an embodiment of the present invention is provided with a cylindrical main body section which is made of a cobalt-containing cemented carbide alloy and is rotatable about the central axis thereof, a cutting edge which is provided at at least one of the tip and the periphery of the main body section, a chip discharge groove which extends from the cutting edge toward the rear end of the main body section, and a coating layer which is made of diamond and covers the cutting edge, wherein the cobalt content of the surface of the main body section at the part coated with the coating layer is less than the cobalt content of the surface of the main body section at parts other than the part coated with the coating layer.
Claims3
A cutting tool comprising:
- a cylindrical main body section which is made of a cobalt-containing cemented carbide alloy and is rotatable about a central axis thereof, the main body section comprising a cutting section and a shank section;
- a cutting edge which is provided at least one of a tip and a periphery of the cutting section of the main body section;
- a chip discharge groove which extends from the cutting edge toward a rear end of the cutting section of the main body section;
- and
- a coating layer which is made of diamond and coats the cutting edge,
- wherein a cobalt content of a surface of the main body section at a part of the cutting section coated with the coating layer is less than a cobalt content of the surface of the main body section at parts of the cutting section other than the part coated with the coating layer.
Dependencies are inferred from the claim text.