Ultrasonic control shear thickening and polishing method and device

Abstract

An ultrasonic control shear thickening and polishing method comprises the following steps of 1 adding a non-Newtonian fluid polishing solution mixed with abrasive particles and having the shear thickening effect into a polishing pond and fixing a workpiece on a clamp, wherein the clamp is located above the polishing pond; 2 starting a polishing solution circulating system to enable the non-Newtonian fluid polishing solution to be circularly pumped out of the bottom of the polishing solution and fed into the upper portion of the polishing pond; 3 starting an ultrasonic wave generating device, and meanwhile setting the vibration frequency and vibration amplitude to enable the non-Newtonian fluid polishing solution in the polishing pond to rapidly vibrate and produce a strong shear thickening phenomenon; 4 adjusting the clamp to enable the workpiece to perform relative motion, wherein the abrasive particles having the polishing effect produce the micro-cutting effect or chemical mechanical effect on the workpiece to remove materials on the workpiece surface, and accordingly the workpiece surface polishing is achieved. The invention further provides an ultrasonic control shear thickening and polishing device. The ultrasonic control shear thickening and polishing method and device is high in polishing efficiency and low in cost.

Description

technical field [0001] The invention belongs to precision ultra-precision machining technology, in particular to a shear thickening polishing method and a device thereof. Background technique [0002] Complex surfaces have become an important working surface for many parts in aerospace, astronomy, auto parts, molds, and biomedical implants. Aspherical optical parts can correct a variety of aberrations well, improve the ability of instrument identification, and simplify the structure of the instrument; complex curved mirrors can effectively reduce the number of reflections and power loss, and improve accuracy and stability; the engine cylinder with complex curved surfaces improves its work efficiency. At the same time, with the increasingly complex, high-precision, and miniaturized product shape design, more and more complex curved surface shapes are used in biomedical implants, molds, and auto parts. According to statistics, about 30% of mold cavities use complex free-form...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of low polishing efficiency and high cost of the existing shear thickening polishing technology, the present invention provides an ultrasonically controlled shear thickening polishing method and its device with high polishing efficiency and low cost

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