A high-efficiency fluid finishing method and device based on structural cavitation effect

Abstract

The invention discloses an efficient fluid finishing method based on the structure cavitation effect. According to the efficient fluid finishing method, the Venturi tube cavitation effect is introduced to fluid finishing, strong bubble cavitation action is formed in the effective polishing area formed between a processing tool and a workpiece to be processed by arranging a Venturi tube structure on the processing tool, and the bubble cavitation action is utilized to drive a liquid-solid abrasive flow in the formed effective polishing area to move in a high-speed turbulent vortex mode to achieve processing on the surface of the workpiece to be processed through abrasive particles. According to the efficient fluid finishing method based on the structure cavitation effect, the Venturi tube structure is utilized to achieve growth and collapse of bubbles in the microspur gap between the processing tool and the workpiece to be processed so as to achieve unordered and high-speed turbulent flow of the abrasive particles; compared with processing equipment adopting ultrasonic waves, the structure is simpler and the cost is lower; and compared with normal bubble-free-collapse processing equipment, the controllability is better, and the bubble collapse driving effect is more obvious.

Description

technical field [0001] The invention relates to the technical field of surface-constrained abrasive flow finishing, and more specifically, relates to a high-efficiency fluid finishing method and device based on structural cavitation effects. Background technique [0002] In the fields of electronic information, national defense and aviation, it is necessary to use a type of large-diameter flat workpiece. This type of workpiece has a small thickness and a large diameter. It needs to have high surface roughness and surface shape accuracy during use. There are mainly two existing methods for processing such workpieces, which are tool contact processing and abrasive flow processing, in which tool contact processing removes micro-protrusions on the processed surface through tool force and abrasive particles; due to the difficulty of Avoid the inconsistency of abrasive particles and impurity particle sizes, therefore, it will inevitably lead to uneven force on the abrasive particl...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the existing bubble-collapsing-driven abrasive grain processing equipment is too complicated, and it is difficult to realize the uniform processing of the surface of large-diameter workpieces, and to provide a low-cost and more uniform processing based on structural cavitation effect. High-efficiency fluid finishing method and device of the

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