Holder and cutting tool
AssigneeKYOCERA Corporation
InventorsYouji Kobayashi, Koji Enami
Life of this patent
Estimating the term…
Abstract
A holder and a cutting tool with the holder including an insertion hole at a front end part thereof, and a cutting insert that includes a cutting edge part and a shank part. The shank part has substantially a rod shape. A part of the shank part is immovably located in the insertion hole. The front end part of the holder includes a first curved surface part that becomes wider from a front end toward a back side when viewed from a side thereof. The first curved surface part includes: a curved line that extends from an edge of an opening of the insertion hole toward the back side; or a straight line that extends from the edge of the opening of the insertion hole and connects to a curved line that extends continuously from the straight line toward the back side without an angular part.
Claims14
A holder for receiving and fixing a cutting insert, wherein:
- the holder comprises an insertion hole at a front end part of the holder;
- said front end part comprises;
- a first chip control curved surface part that becomes wider from a front end toward a back side when viewed from a side thereof;
- and
- a second chip control surface part that extends outwardly from an entire periphery of the first chip control curved surface part and that is outwardly concave when viewed from a side thereof;
- the first chip control curved surface part comprises i) a curved line that extends from an edge of an opening of the insertion hole toward the back side;
- or ii) a straight line that extends from the edge of the opening of the insertion hole and connects to a curved line that extends continuously from the straight line toward the back side without an angular part.
Dependencies are inferred from the claim text.