Precision combined electrochemical machining method

Abstract

The invention provides a precision combined electrochemical machining method comprising the following steps of: 1) putting a work piece to be machined into an electrolytic bath and connecting the work piece to be machined with an electrochemical system; 2) fixing a mould plate on a fixing frame and connecting the mould plate with the electrochemical system; 3) injecting composite electrolyte into the electrolytic bath; 4) moving the fixing frame through a driving controller so that the mould plate enters the electrolyte; 5) starting the electrochemical system; when an etching agent is generated at an anode according to the design, alternately carrying out restricted etching machining and electroplating machining; when the etching agent is generated at a cathode according to the design, simultaneously carrying out the two machining processes to generate superposition of machining effects; 6) moving the mould plate toward the work piece at a certain time interval and step length under the action of a driving device so as to keep contact between an etching agent layer and the work piece; and 7) after the machining is finished, lifting up the mould plate. The precision combined electrochemical machining method has the following technical effects: a restricted etching machining technology and the traditional electroplating machining technology are combined so as to form a combined electroplating machining technology to carry out combined electroplating machining of a complicated three-dimensional shape on a material; and therefore, the electroplating machining precision can be greatly improved.

Description

technical field [0001] The invention relates to an electrolytic machining method, in particular to a precision composite electrolytic machining method. Background technique [0002] With the development of science and technology, many products in the industrial fields of machinery, electronics, aviation, aerospace and navigation require their mechanical parts to work reliably for a long time under high temperature, high pressure, heavy load or high corrosion environment. In order to meet these requirements, various A large number of new materials (high strength, high hardness, high toughness, high temperature resistance, high corrosion resistance) and complex shapes of mechanical parts (complex curved surfaces, shape combinations, imitating natural shapes) have emerged, so a series of strict requirements are put forward for the processing technology. requirements. Traditional processing technology is increasingly difficult to meet these requirements, thus promoting a lot of...

AI Technical Summary

Problems solved by technology

[0020] The present invention aims at the problems of insufficient electrolytic machining precision at present, and introduces a precision composite electrolytic machining method, which combines the technology of constraining the etchant layer and the electrolytic machining technology to form a new type of high-precision composite electrolytic machining technology

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