High Power Vibration Ultrasonic Assisted Machining Tool With Special Steel Cutting Blade

The ultrasonic vibration consists of

an ultrasonic spindle kit, a constant pressure feed system and a coolant system.

Principle:

The ultrasonic spindle system comprises of an ultrasonic spindle, a power supply, and a motor speed

controller. The power supply converts 60 Hz electrical supply to high frequency (20 kHz) AC output. This

is fed to the piezoelectric transducer located in the ultrasonic spindle. The ultrasonic transducer converts

electrical input into mechanical vibrations. The motor attached atop the ultrasonic spindle supplies the rotational

motion of the tool and different speeds can be obtained by adjusting the motor speed controller.

Functions:

1. The tool with ultrasonic vibration wear rate was lower than that for Tool without vibration.
2. ultrasonic vibration assisted drilling of glass, the tool wear without vibration was approximately twice of that with vibration.
3. The cutting force was significantly reduced (about 20%) with rotary ultrasonic machining compared to diamond grinding.
4. The roughness value was reduced by 85% with ultrasonic vibration, a significant roughness improvement. And the roughness could be either increased or decrease, depending on the vibration amplitude.

Applications:

Improvements led to the development of a machine comprising a rotating ultrasonic transducer. The rotating

transducer head made it possible to precisely machine stationary workpieces to close tolerances. With

different shaped tools, the range of operations could be extended to end milling, tee slotting, dovetail cutting,

screw threading, and internal and external grinding.

high power ultrasonic vibration assisted machining tool with special steel cutting blade