In a Flank Wear?

Flank Wear is most commonly caused due to abrasive wear of the cutting edge against the machined surface. ... Flank Wear generally occurs when the speed of cutting is very high. It causes many losses but one of them is increased roughness of surface of the final product.

How does flank wear happen?

Flank wear occurs due to:

Abrasion by hard particles and inclusions in the work piece. Shearing off the micro welds between tool and work material. Abrasion by fragments of built‐up‐edge ploughing against the clearance face of the tool. At low speed flank wear predominates.

What does flank wear and crater wear mean?

flank wear in which the portion of the tool in contact with the finished part erodes. ... crater wear in which contact with chips erodes the rake face. This is somewhat normal for tool wear, and does not seriously degrade the use of a tool until it becomes serious enough to cause a cutting edge failure.