| 摘要 |
PROBLEM TO BE SOLVED: To require a cutting device and a cutting method allowing accurate detection of cutting resistance without being drowned out by measurement noise of the whole of the device even when using a plural-tooth-cutting tool having small diameters.SOLUTION: A cutting device 1 includes a plural-tooth cutting tool 7 having a plurality of cutting teeth and a chuck section 6 which is mounted with the plural-tooth cutting tool 7 thereon to perform rotary driving, and is capable of controlling cutting conditions such as feed speed of the plural-tooth cutting tool 7 or cutting amount to an object H to be cut. The cutting device 1 includes a sensor 15 detecting a monitoring signal to obtain impact amount of the plural-tooth cutting tool 7 during cutting, and further includes a control device 16 including data conversion means obtaining frequency axis waveform data from time axis waveform data of the monitoring signal of the plural-tooth cutting tool 7 detected by the sensor 15, impact amount extraction means extracting the monitoring signal by a frequency of a multiple of cutting teeth of the rotation number of the plural-tooth cutting tool 7 from the obtained frequency axis waveform data as impact amount correlated with cutting resistance, and impact amount output means outputting the extracted impact amount. |
