MULTIPLE GROOVE CHIP CONTROL FOR CUTTING INSERT

摘要

A cutting insert having an upper and a lower base face; side walls adjoining the faces; at least one cutting edge formed at an intersection of the upper face and a side wall; and at least one cutting corner formed at an intersection of an adjacent pair of side walls. A chip control structure is formed in the upper face extending along the cutting edge from the cutting corner for at least an effective cutting length of the cutting edge. A land surface spaces the chip control structure from the cutting edge. The chip control structure includes multiple radially spaced grooves, wherein the grooves of the chip control structure have a depth generally decreasing from the land toward the center of the insert.