On-line tool condition monitoring is essential for modern machining systems, especially in
the case of precision and unmanned machining. Knowledge of the condition and the
expected life of the tool are very important inputs for determining the optimal machining
parameters. Previous efforts have indicated that ultrasonic gaging methods can be used to
directly measure in-process gradual tool wear during turning operations. Good correlation
was shown between the level of gradual wear and the ultrasonic signals. However, the …

On-line tool condition monitoring is essential for optimizing modern machining systems
especially in the case of precession and unmanned machining. Knowledge of the condition
and the expected life of the cutting tool are very important inputs for determining the optimal
machining parameters. Previous efforts have indicated that ultrasonic gauging methods can
be used to directly measure, in-process, gradual tool wear during turning operations. Good
correlation was shown to exist between the level of gradual wear and the ultrasonic signals …