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Circulating wire cutting electrode system and processing method for electrolytic wire cutting

A technology of cutting processing and electrode system, which is applied in the direction of processing electrodes, electric processing equipment, electrochemical processing equipment, etc., can solve the problems that the electrochemical reaction ions cannot be replenished in time, the processing cannot be continued, and the processing gap is small, so as to achieve no processing Effect of heat-affected zone, no residual stress, and reduced processing cost

Inactive Publication Date: 2010-07-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, when the high aspect ratio structure is processed by electrolysis, since the processing gap is usually small, if the electrolysis product during processing cannot be discharged smoothly, and the new electrochemical reaction ions cannot be replenished in time, a short circuit will often occur, making the processing unsustainable. conduct

Method used

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  • Circulating wire cutting electrode system and processing method for electrolytic wire cutting
  • Circulating wire cutting electrode system and processing method for electrolytic wire cutting
  • Circulating wire cutting electrode system and processing method for electrolytic wire cutting

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Embodiment Construction

[0018] Combine below figure 1 , figure 2 , image 3 and Figure 4 Illustrate method of the present invention, implementation process passes through following several steps successively:

[0019] 1. Reference Figure 4 , the metal wires are butted end to end by a cold joint machine to form a ring, and then the connection is polished with large-mesh sandpaper, and the polished ring-shaped metal wire is used as the cathode of the tool. The principle of cold splicing machine: cold splicing machine is a kind of machine that does not need any additives and electric energy. It makes the metal wire pass through a special mold, and under certain extrusion, the pure metal lattices are mixed and combined with each other to realize molecular fusion. The connection principle of atomic structure, so as to weld the cold welding equipment of various alloy wires

[0020] 2. Reference figure 2 , image 3 and Figure 4 , make wire-feeding frame 18 with insulating materials such as plex...

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Abstract

The invention relates to a circulating wire cutting electrode system and a processing method for electrolytic wire cutting, which belong to the field of electrochemical processing. The electrode system comprises a wire cutting frame (18), a driving guide wheel (22), a conductance guide wheel (24) and a positioning guide wheel arranged on the wire cutting frame (18), and a tension guide wheel (15) with adjustable positions; the conductance guide wheel (24) is connected with the negative pole of a power supply (24); and the system also comprises electrode wires (21) which are wound on the four guide wheels and are butted end to end, and a micro variable speed motor (23) connected with the driving guide wheel (22) through a transmission gear group (29). In an electrolysis process, circulating wire cutting motion is realized with the electrode wires so as to eliminate electrolytic products, so that novel electrochemical reaction ions are timely supplemented to a processing area. The invention can greatly improve the processing efficiency and the processing quality, and reduce the processing cost.

Description

technical field [0001] The invention relates to a circulating wire electrode system and a processing method for electrolytic wire cutting, belonging to the field of electrochemical processing. Background technique [0002] The wide application prospect of MEMS devices has led to the vigorous development of various microfabrication technologies, and in practical applications, many MEMS devices require high aspect ratio structures. However, the existing micromachining technologies have their own limitations and deficiencies. For example, the micro-EDM electrode wears seriously, the loss mechanism is complicated, and compensation is difficult; the LIGA technology has a complicated process and a long preparation period, which is not suitable for single-piece or small-batch products. Production; the processing accuracy of laser processing is not good, and there will be disadvantages such as taper and recasting layer. In contrast, microfabrication based on electrochemical princip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/04B23H3/00
Inventor 朱荻曾永彬王少华朱兵曲宁松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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