Wear patterns from turning Rake face Cutting edge Flank face Corner radius Types of wear Flank face wear Characteristics Abrasion on the flank fa

Wear patterns from turning Rake face Cutting edge Flank face Corner radius Types of wear Flank face wear Characteristics Abrasion on the flank fa

Wear patterns from turning Rake face Cutting edge Flank face Corner radius Types of wear Flank face wear Characteristics Abrasion on the flank face of the indexable insert Action Use a cutting material that is more wear-resistant Increase the feed rate Reduce the cutting speed Insure adequate coolant application Plastic deformation Deformation of the cutting edge due to thermal overload and high cutting forces Use a cutting material that is more wear-resistant Reduce the feed rate Reduce the cutting depth Insure adequate coolant application Reduce the cutting speed Chipping Chipping along the cutting edge Use a tougher carbide grade Check setup rigidity Reduce overall tool overhang Select a stronger chipbreaker geometry Reduce the speed if vibration is present Reduce the feed rate Build-up on the cutting edge Adhesion of material along the cutting edge on the rake face Increase the cutting speed and/or reduce feed rate Use a sharper geometry with greater rake angle Insure adequate coolant application Use an insert with a treated rake surface (Tigertec ) or a PVD coated grade Crater wear Crater-shaped cavities on the rake face of the indexable insert Reduce the cutting speed Use a geometry with a greater rake angle Use a cutting material that is more wear-resistant and with a high proportion of AlzO3 (steel cutting grades) Insure adequate coolant application Notching or oxidation wear Notching around the cutting depth on the indexable insert Increase lead angle (k 15 730745775°) or use a round insert Vary the cutting depth Use a tougher cutting material (PVD coated) Reduce the cutting speed Use a more open geometry Insure adequate coolant application For notching on the corner radius, select smaller nose radius Thermal cracks Multiple cracks running vertical to the cutting edge, due to thermal shock Use a tougher cutting material Increase the cutting speed Reduce the feed rate Eliminate coolant in interrupted and milling cuts Select a stronger chipbreaker geometry A 456 WALTER Valenite Technical information Turning Usage information