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Yang L.,Nanjin University of Aeronautics and Astronautics | Ding Q.,Nanjin University of Aeronautics and Astronautics | Huang W.,Nanjin University of Aeronautics and Astronautics | Zhao C.,Nanjin University of Aeronautics and Astronautics
Yadian Yu Shengguang/Piezoelectrics and Acoustooptics | Year: 2010

A new type of mode convert piezoelectric drill was presented. The drill was fixed on the base of the stator with an angle to form a longitudinal-bending vibration converter. By using the converse piezoelectric effect to exciting the longitudinal vibration of the stator base, the converter would convert the longitudinal vibration to bending the vibration partially. These two vibrations would be composed to form an elliptical motion. This provided the power for cutting or drilling. The finite element analysis software ANSYS was used to design the structure of the piezoelectric drill. The cutting locus of the drill under the working frequency has been simulated. A prototype was manufactured according to the simulation, the laser scanning experiment on the prototype showed that the working frequency of the drill was 56 kHz, namely the cutting motion could reach to 336×104 times/min and the cutting amplitude could be limited to the micron level. The experiment showed that when the common dental drill was fixed on the prototype, the cutting and drilling can be performed on the common print paper, hardboard, aluminum plate, steel plate and so on. Source

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