What is chatter in Machining? During a cutting process, there is a dynamic interaction between the cutting tool, the workpiece, and the machine tool. Chatter is a harmonic imbalance between the cutting tool and the workpiece, meaning the components are literally bouncing against each other.
What causes tool chatter?
Chatter is caused by the inherent natural frequency of a cutting tool. The natural frequency can be affected by many process conditions: the toolholder, cutter tooling, part fixtures and machine condition. … All appropriate rotating tools, such as endmills, facemills, drills and boring bars, can be balanced.
How do I reduce tool chatter?
- Reducing the number of flutes.
- Decreasing the chipload per tooth by reducing the feed or increasing the speed or RPM.
- Reducing the axial or radial depth of cut.
