Experimental study on pulsation behavior of the ultrasonic vibration-assisted abrasive waterjet

With an aim to improve the efficiency of abrasive waterjet machining, the ultrasonic vibration is used in the process of the abrasive waterjet machining. The impacting force of the ultrasonic vibration-assisted abrasive waterjet is measured by the piezoelectric crystals dynamic signal tester. The experimental result indicates that the pulsation behavior of the abrasive waterjet is enhanced, and the pulsation frequency and amplitude are significantly increased, the average impacting force of the abrasive water jet is higher than that without ultrasonic vibration. The experiment also indicates that the pulsation amplitude of the jet is greatly affected by the system pressure and abrasive addition, and the pulsation amplitude is slowly reduced with the jet pressure increasing and abrasive adding.