Cutting tool
AssigneeSumitomo Electric Hardmetal Corp.
InventorsYutaka KOBAYASHI, Katsuo KAZAHAYA
Life of this patent
Estimating the term…
Abstract
A cutting tool includes: a rake face; a flank face continuous to the rake face; and a cutting edge formed by a ridgeline between the rake face and the flank face. The cutting tool includes: a base material having a first face on a side of the rake face and a second face on a side of the flank face; and a diamond layer covering the first face and the second face. The first face includes: a first top face continuous to the second face; and a second top face continuous to the first top face and disposed such that the first top face is sandwiched between the second top face and the second face. An angle formed between the first top face and the second top face is a negative angle in a cross section perpendicular to the cutting edge.
Claims6
A cutting tool having a rake face, a flank face continuous to the rake face, and a cutting edge formed by a ridgeline between the rake face and the flank face, the cutting tool comprising:
- a base material having a first face on a side of the rake face and a second face on a side of the flank face;
- and
- a diamond layer covering the first face and the second face,
- the first face including
- a first top face continuous to the second face, and
- a second top face continuous to the first top face and disposed such that the first top face is sandwiched between the second top face and the second face, wherein
- an angle formed between the first top face and the second top face is a negative angle in a cross section perpendicular to the cutting edge.
Dependencies are inferred from the claim text.