End mill
AssigneeKYOCERA Corporation
InventorMasahiko Kuroda
Life of this patent
Estimating the term…
Abstract
The invention provides an end mill having an improved chip discharging performance and capable of carrying out excellent cutting machining. The end mill includes an end cutting edge (2) provided on a front end of a tool body (1) which rotates around a central axis, a peripheral cutting edge (4) provided on an outer periphery of the tool body (1), a rake surface of the end cutting edge (2) and the peripheral cutting edge (4), and at least one recess (6), which locally breaks the continuity of the end cutting edge (2) is provided, wherein a wall section (8) which extends toward the rear of the outer peripheral side is provided at least in that area of the rake surface (3) which is closer to the outer peripheral side than the recess (6).
Claims7
An end mill comprising:
- an end cutting edge provided on a front end of a tool body which rotates around a central axis;
- a peripheral cutting edge provided on an outer periphery of the tool body;
- a rake surface of the end cutting edge and the peripheral cutting edge;
- and at least one recess which locally breaks the continuity of the end cutting edge is provided, wherein a wall section which extends so as to become closer to the outer periphery in relation to the position of the wall section as the wall section nears a rear of the tool body is provided at least in that area of the rake surface which is closer to the outer peripheral side than the recess, and wherein the wall section extends from the recess to reach the outer periphery in a direction between a rear direction parallel to the central axis and an outer peripheral direction perpendicular to the central axis.
Dependencies are inferred from the claim text.