To provide a set of cutting inserts composing cutting inserts with different corner radii formed with one type of press metal mold, which does not form a recess in a corner blade.
The set of cutting inserts comprises multiple types of cutting inserts D-F having cutting blades 7 and 8, which extend in a direction of intersecting each other at the same intersecting angle, formed on both ends of convex-curved corner blades 6 formed at corners C of rake faces 2. Rake faces 2a contacting with the corner blades 6 are provided with a positive rake angle. The multiple types of cutting inserts have the corner blades 6 with different corner radii R10-R12. In the rake faces 2a contacting with the corner blades 6 of the cutting insert D with the smallest corner radius R10 are formed circular arcs 11 and 12, which have radii equal to the corner radii R11 and R12 of the corner blades 6 of the other cutting inserts E and F when viewed from the opposing direction of the rake faces 2 and internally contact with the cutting blades 7 and 8, to extend on one flat surface.
| JPH07299633 | END MILL |
| JPS5380887 | CUTTER |
| JP4650272 | Round piece insert removable roughing end mill |
| JPS6284906A | 1987-04-18 | |||
| JPH0811007A | 1996-01-16 | |||
| JP2012081526A | 2012-04-26 | |||
| JP2011519744A | 2011-07-14 | |||
| JPS6284906A | 1987-04-18 |
Tadashi Takahashi
Hiroshi Masui
Fumihiro Hosokawa