Abstract
This paper proposes a sensorless approach for realtime tool fracture detection in milling by means of servo information. Cutting force and torque can be estimated in a wide-frequency range by applying disturbance observer to the ballscrew-driven stages and the spindle controllers. By integrating the estimated information in each axis, a fracture-induced variation in cutting force and torque can be accurately captured with parallel sliding Fourier transform which is an analytical approach of low computation load in time-frequency domain. Validation of the proposed method is presented through milling tests of various milling conditions with several fractured endmills.
Original language | English |
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Journal | CIRP Annals - Manufacturing Technology |
DOIs | |
Publication status | Accepted/In press - 2016 |
Keywords
- End milling
- Monitoring
- Observer
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering