Field-domain-concentrated direct-writing type micro-electrochemical machining method and field-domain-concentrated direct-writing type micro-electrochemical machining device

Abstract

The invention discloses a field-domain-concentrated direct-writing type micro-electrochemical machining method and device. The method comprises the following steps that a workpiece is clamped on a workbench through a clamping mechanism; placing the high-molecular polymer particles in an electrolytic medium preparation mechanism, and dissolving, diluting and mixing the high-molecular polymer particles by the electrolytic medium preparation mechanism to form a viscous electrolytic medium; the tail end of the conveying pipe is guided to the position above the workpiece through a position adjusting mechanism; conveying a viscous electrolytic medium to the workpiece through a conveying pipe, wherein the electrolytic medium is vertically arranged on the workpiece; driving a tool to move above the workpiece through a main shaft driving mechanism, so that the tool is inserted into the electrolytic medium; adjusting the distance between the tool and the workpiece; switching on a power supply and performing electrolytic machining on the surface of the workpiece. The high-molecular polymer material is used as a component of the electrolytic medium, the flow characteristic of the electrolyte is controlled, the concentrated corrosion capacity is improved, stray corrosion is reduced, and the direct effect of field domain concentration is achieved.

Description

technical field [0001] The invention relates to an electrolytic machining method and device, in particular to a field-focused direct-writing micro electrolytic machining method and device. Background technique [0002] Electrolytic machining is a special processing method that uses the principle of electrochemical anodic dissolution of metals in electrolytes to shape workpieces. The electrolyte flows through the gap between the electrodes, forming a conductive path between the two electrodes, and generating a current under the power supply voltage, thereby forming an electrochemical anode dissolution, and finally the gaps between the two electrodes tend to be consistent, and the surface of the workpiece is formed and the working surface of the tool basically similar shapes. [0003] The electrolytic medium in micro-electrolytic machining plays the role of participating in electrochemical reactions, dissolving materials, maintaining processing stability and taking away proce...

AI Technical Summary

Problems solved by technology

Whether it is nonlinear electrolyte or jet electrolysis, due to the fluid characteristics of the electrolyte during processing, the workpiece or the processing area will be immersed in the electrolyte. At this time, the material removal will occur in the soaked area under the influence of the electric field. Scattering corrosion leads to low processing accuracy, and the effective utilization rate of energy is reduced, the current efficiency is low, and it is difficult to achieve precision processing

Moreover, the flow of electrolyte is difficult to control. Traditional electrolyte has a corrosive effect on equipment and tooling, requiring frequent maintenance of equipment and high cost.

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