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Dongguan Jinchen Precision Mold Co., Ltd. is a manufacturer specializing in high-precision mold parts processing and technology research and development. It has more than ten years of production experience and has solved many supply and technical problems for customers.

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Discharge process principle of spark machine

The spark machine is an efficient metal processing equipment that effectively processes the mold cavity through the principle of electric corrosion. When performing EDM, the electrodes and the processed precision mold parts are connected to the two stages of the pulse power supply and immersed in the working fluid or the working fluid is filled into the discharge gap.When the gap between the two electrodes reaches a certain level, the pulse voltage on the two electrodes will decompose the working fluid and generate spark discharge. At this time, a large amount of heat energy is instantly concentrated in the tiny discharge liquid, and the temperature can be as high as 10,000°C. And the pressure also changes sharply. At this time, the discharge part of the mold parts immediately melts, vaporizes and explodes into the processing fluid. Then it condenses into small metal particles and takes away the processing fluid.After melting, tiny grooves will be left on the surface of the mould components. Discharge is temporarily stopped. The working liquid between the two electrodes returns to the insulating state, and then the next pulse voltage will immediately approach, and the other sides of the two electrodes will penetrate, generating a spark discharge. This process continues to be repeated, and finally the processed precision mold parts are obtained.

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