METHOD OF ACCURACY AND PRODUCTIVITY INCREASE OF ROUND GRINDING Russian patent published in 2017 - IPC B24B51/00 B24B53/00 

FIELD: technological processes.

SUBSTANCE: method includes continuous monitoring of the abrasive wheel cutting ability when grinding on a cylindrical grinding machine using an acoustic emission (AE) sensor and automatic correction of the abrasive wheel with a change in its cutting ability. During the grinding process, the spectral distribution of the number of AE emissions and their peak amplitudes in the frequency spectrum range from 60 to 300 kHz is continuously monitored. Changes in these parameters reflect changes in the structure of macro- and microgeometric deviations of the abrasive wheel interacting surfaces and the details and processes of plastic deformation that develop in the course of reducing the cutting ability of the abrasive wheel. In this case, the automatic correction of the abrasive wheel is carried out by means of its electroerosive dressing by changing the voltage of the electric pulse generator power source supplied to the abrasive wheel in the range of 25…40 V and pulse frequencies in the range of 1…22 kHz.

EFFECT: increased accuracy and productivity of the grinding process.

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