Tool and method of manufacturing tool
AssigneesSumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
InventorsRintaro Sugimoto, Takashi Harada, Satoru Kukino, Taisuke Higashi, Naoki Watanobe, Mayuka Segawa
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Abstract
A tool of the present disclosure includes a tip end portion. The tip end portion has a surface. At least a part of the surface includes a plurality of protrusions, a first recess provided by contact between ends of two adjacent protrusions of the protrusions, and a second recess different from the first recess. The second recess is provided inside at least one of the protrusions or provided to extend across the two adjacent protrusions.
Claims20
A tool comprising a tip end portion, wherein
- the tip end portion has a surface,
- at least a part of the surface includes a plurality of protrusions, a first recess provided by contact between ends of two adjacent protrusions of the protrusions, and a second recess different from the first recess, and
- the second recess is provided inside each of the protrusions or provided to extend across the two adjacent protrusions,
- wherein the protrusions are partial spherical surfaces with the second recesses cut into the partial spherical surfaces, and
- wherein the entire circumference of each of the protrusions is surrounded by the first recesses.
A method of manufacturing a tool, the method comprising:
- preparing a tip end portion;
- and
- by irradiation with laser, forming a plurality of protrusions in at least a part of a surface of the tip end portion,
- a first recess being provided in a part of the surface of the tip end portion by contact between ends of two adjacent protrusions of the protrusions, the method further comprising:
- by irradiation with laser, providing a second recess to be inside each of the protrusions or to extend across the two adjacent protrusions,
- wherein the protrusions are partial spherical surfaces with the second recesses cut into the partial spherical surfaces, and
- wherein the entire circumference of each of the protrusions is surrounded by the first recesses.
A tool comprising a tip end portion, wherein
- the tip end portion has a surface,
- at least a part of the surface includes a plurality of protrusions, a first recess provided by contact between ends of two adjacent protrusions of the protrusions, and a second recess different from the first recess, and
- the second recess is provided inside each of the protrusions or provided to extend across the two adjacent protrusions,
- wherein the protrusions are partial spherical surfaces with the second recesses cut into the partial spherical surfaces, and
- wherein each of the protrusions is surrounded by the first recesses,
- wherein each of the first recesses has a linear shape in plan view and each protrusion is formed by an inside region surrounded by a plurality of the linear shape first recesses.
Dependencies are inferred from the claim text.