The edge of the wiper insert has a bevelled surface adjacent to the nose radius parallel to the machined surface
The wiper insert allows higher surface smoothness to be achieved. However, it gives rise to larger cutting forces, which is why stable tool holders and machines are recommended.
Usually, Wiper insert is used when one of the following is striven...
- Maintained surface finish with increased feed, ie increased productivity
- Improved surface finish while maintaining feed
