Ethylene Glycol Based Solution Electrolytic EDM Composite Wire Cutting Processing Method
A cutting processing, ethylene glycol-based technology, applied in the field of ethylene glycol-based solution electrolytic EDM composite wire cutting processing, can solve the problems of low current density, affecting the quality of the processed surface, and uneven removal of the electrochemical dissolution of the recasting layer. , to achieve the effect of improving processing efficiency and good passivation film inhibition
Active Publication Date: 2021-06-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
However, due to the low current density, when the traditional water-based working fluid is used to process metal materials such as aluminum and aluminum alloys, titanium and titanium alloys, the surface is likely to continuously produce a passivation film that hinders the normal progress of the electrochemical dissolution reaction, resulting in recasting. Electrochemical dissolution and removal of the layer is uneven, which affects the quality of the processed surface
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[0031] Various exemplary embodiments of the present invention will now be described in detail. The detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features and embodiments of the present invention.
[0032] It should be understood that the terminology described in the present invention is only used to describe specific embodiments, and is not used to limit the present invention. In addition, regarding the numerical ranges in the present invention, it should be understood that each intermediate value between the upper limit and the lower limit of the range is also specifically disclosed. Each smaller range between any stated value or intervening value in a stated range and any other stated value or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded from the range. ...
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Abstract
The invention discloses an ethylene glycol-based solution electrolysis electric spark composite wire cutting processing method, comprising: step 1, clamping a workpiece and a wire electrode on a machine tool; The solvent of the liquid is ethylene glycol; Step 3, connect the workpiece to the positive pole of the pulse power supply, and the wire electrode to the negative pole of the pulse power supply; Step 4, adjust the relative position of the workpiece and the wire electrode to ensure the initial processing gap; Step 5, turn on the pulse power supply, and simultaneously The wire electrode is fed, and the electrolytic EDM wire cutting process is started on the workpiece. The present invention uses ethylene glycol-based solution as the working fluid to replace the traditional water-based working fluid for electrolytic EDM composite wire cutting, which solves the problem that metal materials such as aluminum, aluminum alloy, titanium and titanium alloy are prone to continuous bluntness in the water-based solution. The chemical film leads to poor surface processing quality and uneven removal of the recast layer. At the same time, the electric spark discharge during the processing can effectively improve the processing efficiency.
Description
technical field [0001] The invention relates to the technical field of special processing, in particular to an ethylene glycol-based solution electrolysis electric spark composite wire cutting processing method. Background technique [0002] Electrolytic EDM combined wire cutting machining method is a composite machining method that combines electrolytic machining and EDM. [0003] Electrolytic wire cutting is a processing method based on the principle of electrochemical anodic dissolution of metal workpieces in the working fluid. This method has no recast layer on the surface and high surface quality, but the processing efficiency is low. Wire EDM is based on the instantaneous high temperature generated by the spark discharge between the tool and the workpiece to remove material. Its processing efficiency is much higher than that of EDM, but a recast layer will be formed on the surface of the workpiece during the processing, which will affect the quality of the workpiece. ...
Claims
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IPC IPC(8): B23H7/02B23H7/34B23H11/00
CPCB23H7/02B23H7/34B23H11/00
Inventor 房晓龙胡孝昀曲宁松朱嘉澄
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS