CUTTING INSERT WITH CHIP-CONTROL ARRANGEMENT

摘要

A cutting insert has a cutting corner, having a bisector, located on a top surface of the cutting insert. A chip-control arrangement is located at the cutting corner. The chip-control arrangement includes a projection protruding from the top end face and that extends longitudinally in a direction transverse to, and to opposites sides of, the bisector. The chip-control arrangement also includes a protrusion protruding from the top end face and comprising a protrusion ridge that extends from the projection towards a corner cutting edge at the cutting corner.

主权项

1. A cutting insert (20) comprising:
opposing top and bottom end faces (24, 26) and first and second side surfaces (28A, 28B) extending therebetween; a corner surface (30A) connecting the first and second side surfaces (28A, 28B) and intersecting the top end face (24) to form a corner cutting edge (32); a cutting corner (40A), located on the top end face (24) adjacent the corner cutting edge (32), the cutting corner (40A) having a bisector (B); and a chip-control arrangement (22) located at the cutting corner (40A) and comprising:
a projection (44) protruding from the top end face (24) and extending longitudinally in a direction transverse to, and to opposites sides of, the bisector (B), the projection (44) comprising two opposing projection extremities (46A, 46B) and an elongated surface (48) extending therebetween, the elongated surface (48) inclining upwardly from the top end face (24) in a direction away from the corner cutting edge (32); anda protrusion (68) protruding from the top end face (24) and comprising a protrusion ridge (70) that extends longitudinally from the elongated surface (48) in a direction towards the corner cutting edge (32); wherein
the protrusion (68) is lower than the projection (44), in relation to the upward direction (DU).