Method for electrolytic machining of microtexture

Abstract

The invention discloses a method for electrolytic machining of a microtexture. The method mainly includes the following steps that S1, a workpiece anode is immersed in electrolytes, and metal particles are laid flatly on the surface of the workpiece anode to form an equivalent thickness metal particle layer; S2, a tool cathode attached with electric insulation cloth is tightly attached to the metal particle layer, and the electric insulation cloth is disposed between the tool cathode and the metal particle layer; S3, the workpiece anode is connected with the positive pole of a power supply, and the tool cathode is connected with the negative pole of the power supply; S4, the electrolytes are supplied into the metal particle layer through an electrolyte circulating system and flow circularly in a machining gap formed between the workpiece anode and the tool cathode; and S5, the power supply is switched on for electrolytic machining, when machining requirements are met, the power supplyis disconnected, electrolyte supply stops, the workpiece anode is taken out, and machining is completed. The method has the advantages that mask preparation is simple, the application range is wide, and microtextures with uniform sizes and good profiles can be prepared on planes and curved surfaces.

Description

technical field [0001] The invention relates to the field of electrolytic machining, in particular to a method for electrolytic machining of micro-textures. Background technique [0002] Textured metal surfaces have attracted much attention in the fields of friction, heat transfer, wetting and biomedicine due to their excellent wear resistance, heat transfer properties, wettability and biocompatibility. One of the research hotspots in industry and academia. The current manufacturing processes for microstructure features mainly include high-energy beam (such as laser beam, electron beam, etc.) processing, micromachining, chemical etching, and mask electrolytic processing. Mask electrolytic machining is the most commonly used method in electrolytic machining of micropits, but the process of making the mask is very complicated, the operation is cumbersome, and the process cost is high. The machining of complex-shaped curved bodies remains a challenge for this technology becau...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a method based on conductive metal microparticles as a mask, aiming at the complex mask preparation process, the difficulty of mask pressing on complex curved surfaces, and the shortcomings of actual implementation in the existing method of mask electrolytic processing micro-texture. The method of electrolytic processing micro-texture, in this method, the mask preparation is simple, the process cost is low, the molding speed is faster, and the processing efficiency is higher

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