- The entering angle should be close to 90 degrees to give greater axial cutting force and less radial/tangential force
- Use large entering angles and small nose radii to reduce the radial forces, deflection and vibration
- A small nose radius is ideal for small depths of cut and decreases the risk of vibrations
- Use only one adaptive item between the Silent Tools™ adapter and the machine tool spindle, since further extension would reduce or completely ruin the performance
- Use cutting units that are as light as possible to improve the dynamic behavior and effect of the damper
- If possible, use a tapered shank
Productive boring: Two inserts with the same length and diameter to enable increasing feed
Step boring: Additional shim under one of the slides, if you want to take a large radial cut
Single-edge boring: Replace one of the slides with a cover to reduce cutting forces and achieve accurate roundness, good surface finish and close tolerances
Dampened CoroBore® 820XL:
Machine tools and spindle interfaces
Machine tools and spindle interfaces need to be strong and stable to hold large tools and assemblies such as CoroBore® 826D XL. Suitable interfaces are therefore HSK 100 and Coromant Capto® C8–C10. ISO 50 taper (BIG PLUS included) is too weak for these roughing tools.
The recommended start values for inserts and grades listed on the box should be followed, but be aware of the many parameters that have to be taken into consideration, such as actual workpiece material, spindle interface clamping force, torque capacity at a given RPM, net power,etc.