Patent ID: 11945039
Assignee: AB SANDVIK COROMANT
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A round cutting insert for a milling tool, the round cutting insert having an insert centre axis and a neutral plane extending perpendicularly to the insert centre axis, the round cutting insert comprising:
an upper round main surface defining an upper reference plane and a lower round main surface defining a lower reference plane, which are equidistantly separated from the neutral plane;
a circumferential side surface surrounding the insert centre axis and extending between the upper and lower round main surfaces;
an upper cutting edge formed along the intersection of the upper round main surface and the circumferential side surface; and
a plurality of elongated support grooves arranged in the circumferential side surface, wherein each elongated support groove has a bottom surface extending in a lengthwise direction with opposite flank surfaces converging toward the bottom surface and extending in parallel with the lengthwise direction of the elongated support groove, the lengthwise direction of each elongated support groove forming an acute angle with the neutral plane as seen in a side view of the round cutting insert, and at least one of the opposite flank surfaces of each elongated support groove being configured as a side support surface for the round cutting insert.