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On-line preparation method of line electrode of minuteness group lines

A wire electrode, micro technology, applied in the field of precision micro electrochemical machining, can solve problems such as clamping and positioning difficulties

Active Publication Date: 2014-01-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the online preparation process of fine wire electrodes is relatively mature, the method of preparing fine wire electrodes first and then assembling is difficult in clamping and positioning

Method used

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  • On-line preparation method of line electrode of minuteness group lines
  • On-line preparation method of line electrode of minuteness group lines
  • On-line preparation method of line electrode of minuteness group lines

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Embodiment Construction

[0021] according to figure 1 As shown, the online preparation and device of micro-group wire electrodes of the present invention mainly include PCI motion control card 5 and industrial computer 13; also include active vibration isolation platform 1, X-Y axis precision mobile platform 2 on active vibration isolation platform 1, machine tool The column and the Z-axis precision mobile platform 3 located on the machine tool column, the group line installation fixture 9 is installed on the workpiece fixture 4 located on the Z-axis precision mobile platform 3; the cathode tool 8 installed horizontally in the electrolytic cell 10, and the DC power supply 14 The positive and negative poles are respectively connected to the group line electrode on the group line installation fixture 9 and the cathode tool 8, and the current value change in the process is measured and monitored by the current sensor 7; in addition, a CCD11 and a video acquisition card 12 are also included.

[0022] fi...

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Abstract

The invention discloses an on-line preparation method of a line electrode of minuteness group lines, and belongs to the field of precise minuteness electrochemical machining. The on-line preparation method of the line electrode of minuteness group lines is characterized in that the following steps are included: (1) a micron-order tungsten filament is mounted on a clamp of the line electrode of the minuteness group lines, a cathode tool is mounted in an electrolytic cell, and the cathode tool is provide with a cathode hole corresponding to a wire electrode, and is of a sandwich butt joint structure formed by a metal layer and insulating layers on the two sides of the metal layer; (2) an alkaline electrolyte is added into the electrolytic cell to immerse the cathode tool completely; (3) a tool cathode and the line electrode are connected to the positive electrode and the negative electrode of a direct current power source respectively to achieve the enlargement of the diameter of the cathode hole of the metal layer in the tool cathode to form an inward concave structure; (4) the line electrode of the minuteness group lines and the tool cathode are connected to the positive electrode and the negative electrode of the direct current power source respectively, and the line electrode is made to carry out straight reciprocating motion; (5) the electrolyte is replaced by an acid electrolyte, the tool cathode is replaced by workpieces, the line electrode of the minuteness group lines and the workpieces are made to be connected with the positive electrode and the negative electrode of an ultrahigh-frequency narrow-pulse power source to achieve minuteness electrolytic wire-electrode cutting machining.

Description

technical field [0001] The invention relates to a method and device for on-line preparation of micro-group wire electrodes and micro-electrolytic wire cutting, belonging to the field of precision micro-electrochemical processing. technical background [0002] With the technical development of micro-electromechanical systems (MEMS) and the enrichment of product diversity, MEMS has been widely used in various fields of industrial production, life and learning. The development of MEMS technology has further promoted the development of RF technology, communication technology, safety monitoring and early warning and aerospace technology. The wide application of MEMS will greatly improve social productivity and people's quality of life. The fabrication of micromechanical structures is a prerequisite for MEMS technology. A fundamental feature of MEMS is the miniaturization of its size, down to hundreds of microns. Therefore, the development of MEMS puts forward high requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H7/08
Inventor 曾永彬王玉峰曲宁松朱荻
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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