Insert for metal cutting

摘要

The present invention relates to a coated cutting insert for metal machining in particular of short chipping materials comprising a tungsten carbide-based substrate with a binder phase enriched surface zone having at least one rake face and at least one clearance face intersecting to form a cutting edge. The binder phase enriched surface zone is at least partly missing on the rake face including at least a part of the surface extending from the cutting edge. As a result an optimum combination of edge strength and wear resistance has been achieved.