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Electrical discharge machining method achieving uneven distribution of single pulse energy of pulse power source

A non-uniform distribution and pulse energy technology, applied in electric processing equipment, metal processing equipment, circuits, etc., can solve the problems of tool electrode loss, slowness, and workpiece surface quality deterioration, etc., to achieve increased erosion rate and reasonable power supply Energy, quality-enhancing effects

Inactive Publication Date: 2018-10-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Although the processing efficiency can be improved by increasing the discharge energy, when the processing efficiency exceeds a certain value, the increase of the discharge energy will be very slow, and the surface quality of the workpiece will also deteriorate with the increase of the pulse energy. , the corresponding will also bring a series of problems such as increased tool electrode loss

Method used

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  • Electrical discharge machining method achieving uneven distribution of single pulse energy of pulse power source
  • Electrical discharge machining method achieving uneven distribution of single pulse energy of pulse power source
  • Electrical discharge machining method achieving uneven distribution of single pulse energy of pulse power source

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with drawings and embodiments.

[0026] Such as figure 1 , 2 shown.

[0027]A method to improve the energy utilization rate and processing effect of a pulse power supply by changing the energy distribution in a single pulse, aiming at the following purposes in the EDM process to reasonably distribute the energy of a single pulse: further excavate the energy utilization rate of the power supply pulse and improve the processing efficiency , speed up the deionization speed between the electrodes after the discharge, reduce the thickness of the solidified layer on the processed surface, and improve the integrity of the processed surface. Including the following energy distribution content:

[0028] (1) The ionization and breakdown stages of the interpolar medium

[0029] After the pulse voltage is applied between the tool electrode and the workpiece, an electric field is formed between the two electrod...

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Abstract

The invention provides an electrical discharge machining method achieving uneven distribution of single pulse energy of a pulse power source. The method is characterized in that during different microstages of electrical discharging, the pulse power source provides different pulse energies to achieve the purposes of increasing the energy utilization rate of the energy source, improving machiningefficiency, reducing the loss of tool electrodes, improving the machined surface quality and accelerating deionization among pulses. The method has no special requirement for the magnitude of pulse discharging energy and the type of media among the electrodes, and the effect of the machining technology can be improved only by changing the distribution form of the discharging energy of the single pulse. The method has the beneficial effects of being simple, easy to achieve and the like.

Description

technical field [0001] The present invention relates to an electric discharge machining method, especially a machining method that can distribute single pulse discharge energy to achieve high efficiency, low loss and improve surface quality according to the needs of different machining processes. Specifically, it is a machining method based on The method of changing the energy distribution of a single pulse discharge due to the change of the microscopic process of the interelectrode discharge, in order to improve the utilization rate of pulse energy, improve the erosion rate and processing efficiency of materials, reduce the loss of tool electrodes, and improve the quality of processed surfaces. Background technique [0002] EDM is a processing method that uses pulsed spark discharge between tool electrodes and workpieces to erode materials in a medium. Because this method has many advantages, such as being suitable for processing difficult-to-machine materials, and can proc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/02
CPCB23H1/022
Inventor 刘志东张月芹潘红伟邱明波
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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