Photoinduced-deformation intelligent electrode and electrochemical machining method thereof

Abstract

The invention discloses a photoinduced-deformation intelligent electrode which is made of a conductive photoinduced-deformation material. Correspondingly, the invention further discloses an electrochemical machining method of the photoinduced-deformation intelligent electrode. According to the photoinduced-deformation intelligent electrode and the electrochemical machining method of the photoinduced-deformation intelligent electrode provided by the invention, the photoinduced-deformation intelligent electrode is manufactured by adopting the conductive photoinduced-deformation material, so thatthe defect that a few micron-level high-precision electrodes are difficult to process can be overcome.

Description

technical field [0001] The invention relates to the technical field of electrodes, in particular to a photodeformable smart electrode and an electrochemical processing method thereof. Background technique [0002] Micromachining has a wide range of applications in many fields such as precision molds, aerospace, precision instruments, and biomedicine. Many micro-machining methods currently developed, such as micro-EDM, micro-electrochemical machining, micro-ultrasonic machining, etc., require the use of electrodes to realize the processing of microstructures. In order to ensure the size and precision of micromachining, there are strict requirements on the size, shape, position accuracy and surface quality of the electrodes used. [0003] There are two methods of electrode preparation: off-line and on-line. In order to match the subsequent microfabrication process, on-line preparation is usually used. The traditional online preparation methods mainly include electrochemical ...

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Problems solved by technology

[0004] "Electrochemical solution corrosion method" is used to prepare a very thin electrode. During the corrosion process of the electrode, due to the different corrosion rates of the various parts of the electrode inserted into the corrosion solution, as the reaction progresses, the lower end inserted into the solution will be different from the upper end. In this process, the corrosion current will drop rapidly. When the current drops sharply, the power circuit must be cut off quickly to prevent the upper needle tip from continuing to corrode to obtain a very thin electrode, which makes it difficult to control its machining accuracy.

[0005] "Wire electrode discharge grinding method" because the processing method is a point discharge processing form, so that the processing efficiency is not high; the vibration of the wire electrode, the speed of the wire, the surface quality of the wire, etc. will cause damage to the electrode, and the damage to the wire feeding mechanism. High manufacturing precision and motion precision requirements greatly increase the manufacturing cost of the device

[0006] "EDM anti-copy block method" due to the continuous wear of the anti-copy block working surface, there is a verticality error between the anti-copy block and the worktable plane, the size of the workpiece electrode is not easy to control, and the contact area is large, it is difficult to achieve micro energy discharge, it is difficult to obtain high-precision electrodes

[0007] Existing electrodes require external mechanical force or chemical corrosion to produce the target size, with low machining accuracy, mediocre electrode quality, and high preparation costs

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