Cutting tool
AssigneeSumitomo Electric Hardmetal Corp.
InventorsKento Yamada, Hironari Moroguchi, Yusuke Matsuda, Satoru Kukino
Life of this patent
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Abstract
A cutting tool, including a cutting edge portion composed of a cubic boron nitride sintered material, wherein the cutting edge portion has: a flank face; a rake face contiguous to the flank face; and a cutting edge positioned on a ridgeline of the flank face and the rake face, an arithmetical mean height Sa of the flank face is 0.5 μm or more and 3.0 μm or less, the Sa is measured in accordance with ISO25178-2:2012, and an oxygen concentration of the flank face is 10 mass % or more and 50 mass % or less.
Claims8
A cutting tool, comprising a cutting edge portion composed of a cubic boron nitride sintered material, wherein
- the cutting edge portion has:
- a flank face;
- a rake face contiguous to the flank face;
- and a cutting edge positioned on a ridgeline of the flank face and the rake face,
- an arithmetical mean height Sa of the flank face is 0.5 μm or more and 3.0 μm or less,
- the Sa is measured in accordance with ISO25178-2:2012, and
- an oxygen concentration of the flank face is 10 mass % or more and 50 mass % or less.
Dependencies are inferred from the claim text.