| 摘要 |
The present invention relates to an indexable cutting insert for milling of a root between two cogs of a cog wheel comprising a top surface forming a chip surface, a bottom surface, a side surface connecting the top and bottom surfaces and forming a clearance surface, a first curved cutting edge and a second curved cutting edge formed at an intersection between the top surface and the side surface for milling of the root between the two cogs, wherein each of the cutting edges has an apex, and wherein the cutting insert has a two-fold rotational symmetry. It is an object to provide such an indexable cutting insert allowing a milling of cogs of a cog wheel having a desired precision. In order to solve this object it is suggested to design such a cutting insert, wherein the bottom surface further comprises a first planar abutment section and a second planar abutment section, a first groove extending in the first abutment section along an axis being parallel to a virtual line connecting the apexes of the first and second cutting edges, a second groove extending in the second abutment section along an axis being parallel to a virtual line connecting the apexes of the first and second cutting edges, a first stop section extending across the virtual line, and a second stop section extending across the virtual line, wherein the first stop section protrudes above the first abutment section, and wherein the second stop section protrudes above the second abutment section. |
