Cutting insert with grouped chip-forming ribs arranged symmetrically and having tapering cross sections

摘要

PCT No. PCT/DE92/00410 Sec. 371 Date Dec. 28, 1993 Sec. 102(e) Date Dec. 28, 1993 PCT Filed May 14, 1992 PCT Pub. No. WO92/21467 PCT Pub. Date Dec. 10, 1992.Cutting inserts are provided at their rake faces with a plurality of raised chip-forming elements in the form of longitudinal ribs which can be notched to have longitudinally-separated segments and at least some of which are parallel to one another.