Cutting insert
AssigneeMitsubishi Materials Corporation
InventorsTakeshi Hirose, Yoshihiro Kitagawa, Ken Hasegawa, Yuuichi Suzuki
Life of this patent
Estimating the term…
Abstract
A cutting insert including a main cutting tooth, a sub cutting tooth and a corner tooth. The main cutting tooth has a honing angle α, and the sub cutting tooth has a honing angle β. The corner tooth connects the main cutting tooth and the sub cutting tooth, and has honing angles including a maximum honing angle γ1. The honing angles α, β and γ1 are inclination angles of the main cutting tooth, sub cutting tooth and a corner tooth, respectively. The honing angle α is larger than the honing angle β and smaller than the maximum honing angle γ1.
Claims12
A cutting insert comprising:
- a plurality of main cutting teeth each having a honing angle α;
- a sub cutting tooth having a honing angle β;
- and
- a plurality of corner teeth connecting said plurality of main cutting teeth, respectively, and said sub cutting tooth, said plurality of corner teeth each having honing angles including a maximum honing angle γ1,
- wherein:
- said honing angles α, β and γ1 are angles measured for inclinations of said main cutting tooth, sub cutting tooth and corner tooth, respectively;
- said honing angle α is larger than said honing angle β and smaller than said maximum honing angle γ1;
- and
- said sub cutter tooth is positioned between two of said plurality of corner teeth.
A cutting insert having a seat face, comprising:
- a plurality of main cutting teeth;
- a sub cutting tooth;
- and
- a plurality of corner teeth connecting said plurality of main cutting teeth, respectively, and said sub cutting tooth,
- wherein:
- said plurality of corner teeth each have an outer edge whose height from the seat face is lower than a height of an outer edge of said sub cutting tooth from the seat face;
- said height of said outer edge of said sub cutting tooth is higher than a height of an outer edge of each of said plurality of main cutting teeth from the seat face;
- and
- said sub cutting tooth is positioned between two of said plurality of corner teeth.
A cutting insert comprising:
- a plurality of main cutting teeth each having a honing angle α;
- a plurality of sub cutting teeth each having a honing angle β;
- and
- a plurality of corner teeth each having honing angles including a maximum honing angle γ1, each corner tooth of said plurality of corner teeth connecting a respective one of said plurality of main cutting teeth and a respective one of said sub cutting teeth,
- wherein:
- said honing angles α, β and γ1 are angles measured for inclinations of said main cutting tooth, sub cutting tooth and corner tooth, respectively;
- said honing angle α is larger than said honing angle β and smaller than said maximum honing angle γ1;
- and
- each of said plurality of sub cutting teeth is positioned between two of said plurality of corner teeth.
Dependencies are inferred from the claim text.