Optimal cutting conditions

Machining Navi

Machining Navi - An Overview

Chatter is fairly common in the world of CNC machining. Okuma's Machining Navi chooses the optimal speed(s) at which your machine can avoid chatter, thereby saving operator time and maximising productivity.

Okuma invented Machining Navi, an optional function that uses the OSP control and sensors to monitor chatter. If chatter is detected, the function then either recommends spindle speed changes (Machining Navi L-g and Machining Navi M-g) or automatically makes the spindle speed adjustments (Machining Navi M-i).

Machining Navi L-g
For lathe applications suppressing chatter requires a different approach, especially when turning at lower speeds. Automatic spindle variation, while maintaining safe speeds, suppresses chatter.

Machining Navi M-g
Suitable for high speed machining center applications, Machining Navi M-g uses a microphone to analyse chatter and display optimal settings for chatter-free spindle speeds.

Machining Navi M-i
Vibration is measured by built-in sensors and automatically shifts revolution to the ideal speed to avoid chatter. The result is optimised cutting at the machine’s highest performance limits. The function also helps improve the ability to test new materials and cutting tools.

Machining Navi T-g
Suitable for lathes, the additional function Machining Navi T-g reduces chatter during threading. By changing spindle speed for each path, chatter is suppressed gradually.