Ultrasonic focusing liquid vibration polishing method based on spherical shell piezoelectric transducer

Abstract

The invention discloses an ultrasonic focusing liquid vibration polishing method based on a spherical shell piezoelectric transducer. The method comprises the steps that a workpiece to be processed isput in an open container, wherein the open container is filled with a polishing solution; the spherical shell piezoelectric transducer which can be moved to change the position in the horizontal or perpendicular direction is placed above the workpiece to be processed, and soaked in the polishing solution all the time, and the concave side points to the surface, to be processed, of the workpiece to be processed; and an ultrasonic power source is started to generate high-frequency electricity so as to excite the spherical shell piezoelectric transducer to generate ultrasonic vibration, the spherical shell piezoelectric transducer is moved according to a preset processing path and the retention time of focused ultrasonic waves on each processing point, ultrasonic vibration is transmitted bythe polishing solution to be focused on the workpiece to be processed, and the surface of the workpiece to be processed is polished. The ultrasonic focusing liquid vibration polishing method based onthe spherical shell piezoelectric transducer can achieve accurate correction of the surface of the workpiece.

Description

technical field [0001] The invention relates to the technical field of finishing parts polishing, in particular to an ultrasonic focusing fluid vibration polishing method based on a spherical shell piezoelectric transducer. Background technique [0002] With the development of science and technology, modern machinery products pay more attention to improving the surface quality and surface integrity of parts while focusing on improving the processing accuracy, so as to improve the stability and reliability of product performance. The traditional processing method cannot precisely control the processing process and the main parameters in the processing process, so that deterministic processing cannot be achieved, because it cannot achieve determinism, it is impossible to accurately control and predict the experimental process. , achieving determinism plays a vital role in the entire processing process. As the last step in the processing process, polishing needs to be determin...

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Problems solved by technology

[0003] However, the disadvantage of this ultrasonic fluid polishing method is that the workpiece is completely submerged in the polishing tank, so that the excited abrasive and laser jet will remove material from all surfaces of the entire workpiece, and the removal amount of each part is difficult to control, so The current ultrasonic fluid vibration polishing method cannot perform high-quality correction on the workpiece surface to achieve deterministic polishing

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