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Electrochemical corrosion processing method with micro fine cylindrical group electrode

A technology of corrosion processing and group electrodes, which is applied in the direction of electric processing equipment, processing electrodes, electrode manufacturing, etc., can solve the problems of low processing quality, complicated process flow, high manufacturing cost, etc., and achieve the effect of uniform distribution of current density

Active Publication Date: 2007-04-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0005] The purpose of the present invention is to provide a high processing efficiency, low manufacturing cost, and a processing method for micro-group electrodes with a high aspect ratio, aiming at the shortcomings of complex process flow, high manufacturing cost, and low processing quality in the current micro-group electrode manufacturing method. method

Method used

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  • Electrochemical corrosion processing method with micro fine cylindrical group electrode
  • Electrochemical corrosion processing method with micro fine cylindrical group electrode
  • Electrochemical corrosion processing method with micro fine cylindrical group electrode

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Embodiment Construction

[0046] As shown in Figure 1, the electrochemical corrosion processing of micro-cylindrical group electrodes is carried out on a CNC machine tool that can realize three-degree-of-freedom movement, including the machine tool body 2, the CNC workbench 13, and the z-axis 3; the electrochemical corrosion processing system is installed on the CNC machine tool The electrolyte tank 5 on the workbench 13, the tool cathode 9 fixed in the electrolyte tank by the cathode installation fixture 7, the workpiece anode 8 immersed in the electrolyte by the anode installation fixture 4, and the ammeter 10, the data acquisition card 11, the computer 12. A DC power supply 14 is formed.

[0047] The relative position between the workpiece anode 8 and the tool cathode 9 is adjusted by the movement of the numerical control workbench 13 to make it reach the expected design state. The depth of the workpiece anode 9 immersed in the electrolyte is controlled by the up and down movement of the Z axis 3, an...

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Abstract

The electrochemical corrosion processing method for micro cylindrical group electrode belongs to the field of electrolysis processing technology. The method includes the following steps: 1. making group electrode blank with several single electrodes through wire electric cutting or micro milling; 2. designing and making tool cathode for electrochemical erosion in finite element method; 3. soaking the group electrode blank as the anode for electrochemical erosion and the cathode into electrolyte vertically and parallelly; and 4. applying voltage for processing the group electrode blank via electrochemical erosion and controlling the shape and size of the group electrode via constant voltage method and the charge method. The present invention has simple processing apparatus and control, high processing efficiency, high processing quality and low production cost.

Description

technical field [0001] The electrochemical corrosion processing method of micro-cylindrical group electrodes of the invention belongs to the technical field of electrolytic processing. Background technique [0002] As a typical microstructure, microarray group holes are widely used in aerospace, precision instruments, chemical fiber and other fields, such as high-speed printer nozzle plate, optical fiber connector, chemical fiber spinneret, micro filter and electron microscope grating, etc. For the processing of micro-group hole structures, compared with conventional drilling, micro-electric machining has the advantages of no mechanical cutting force, high machining accuracy and efficiency, and can be processed on thin-walled, elastic parts and other low-rigidity workpieces. Therefore, It has broad application prospects in the processing of micro-porous structures. The machining of micro-cylindrical group electrodes is the key link to realize the micro-electromachining of g...

Claims

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Application Information

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IPC IPC(8): B23H7/22B23H3/04B23H1/04
Inventor 朱荻王磊曲宁松王明环
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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