Online monitoring of truing arc-shaped diamond wheel by acoustic emission signal

To realize the efficient and precision truing of arc-shaped diamond wheel, a novel on-machine precision form truing of arc-shaped diamond wheel is proposed utilizing rotary green silicon carbon rod, and online monitoring of the truing process by acoustic emission was studied. Through this truing method, any required radius of wheel arc profile could be formed by programmed truing paths; meanwhile, the vertical direction position error of the wheel center could be corrected after truing. In order to improve the truing efficiency, the acoustic emission signal was processed to monitor the truing process, and the AE rms threshold of judging the finishing truing time was obtained.