A multi-channel electrical discharge machining device based on ultrasonic vibration and its application method

Abstract

The invention discloses a multi-channel electrical discharge machining device based on ultrasonic vibration and a method of use thereof, which includes a discharge circuit and a working fluid circulation pump. The sub-electrodes are correspondingly connected, and all the sub-electrodes are fixed in parallel as a multi-channel electrode. The upper end of the multi-channel electrode is the liquid inlet end, and the lower end is the discharge end. The positive pole of the power supply is connected to a metal fixture for fixing the workpiece to be processed. The metal fixture is erected in the working fluid tank through the fixture bracket. The outer wall of the working fluid tank is cemented with an ultrasonic vibrator, and the ultrasonic vibrator is equipped with an ultrasonic generator. The electrolytic gas film generated on the electrode surface is broken into bubbles by ultrasonic waves, and cavitation bubbles are generated. The generated bubbles cause electric field distortion in the working fluid, enhance discharge, increase the discharge gap, and make multi-channel discharge easier to occur.

Description

technical field [0001] The invention belongs to the technical field of multi-channel electrical discharge machining, and in particular relates to a multi-channel electrical discharge machining device based on ultrasonic vibration and a method of using the same. Background technique [0002] In the process of electrical discharge machining, when the tool electrode and the workpiece electrode are close to each other, the applied high-frequency pulse voltage can be equivalent to applying a DC voltage between the two electrodes. The equivalent DC voltage will cause an electrochemical reaction between the electrodes, affecting the state of the dielectric between the electrodes, thereby changing the state of discharge between the electrodes. The electrolytic products will be distributed in the working fluid between the electrodes to change the insulating properties of the medium, and change the breakdown voltage and breakdown gap. At the same time, electrodeposition products are ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a multi-channel electrical discharge machining device based on ultrasonic vibration and its use method to solve the problem that during multi-channel electrical discharge machining, gas film and bubbles will be generated between the two electrodes by electrolysis, forming a multi-phase mixed medium, increasing the It reduces the difficulty of breakdown, reduces the number of channels opened by a single pulse, and reduces the technical problem of processing efficiency.

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