Cutting tool and method of manufacturing machined product
AssigneeKYOCERA Corporation
InventorSuguru Onchi
Life of this patent
Estimating the term…
Abstract
A cutting tool may include a body, a cutting edge, and a flute. The body may include a rotation axis and extend from a first end to a second end. The cutting edge may be located at the first end. The flute spirally may extend from the cutting edge toward a side of the second end. The cutting edge may include a first cutting edge and a second cutting edge extending from the first cutting edge toward an outer peripheral surface of the body in a front view. The flute may include a first thinning portion located continuously with the first cutting edge at a side of the first end, and a second thinning portion located continuously with the second cutting edge at a side of the first end. A thinning angle of the first thinning portion may be smaller than a thinning angle of the second thinning portion.
Claims8
A cutting tool, comprising:
- a body having a bar-shape, extending from a first end to a second end, and comprising a rotation axis and a peripheral surface;
- a cutting edge located at the first end;
- and
- a flute spirally extending from the cutting edge toward a side of the second end,
- wherein
- the cutting edge comprises:
- a first cutting edge intersecting with the rotation axis in a front view;
- and
- a second cutting edge extending from the first cutting edge toward the outer peripheral surface,
- the flute comprises:
- a first thinning portion in connection with the first cutting edge and having a first thinning angle;
- and
- a second thinning portion in connection with the second cutting edge and having a second thinning angle, and
- the first thinning angle is smaller than the second thinning angle.
Dependencies are inferred from the claim text.