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Different die processing has different roughness

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Different die processing has different roughness

Data:2019-01-11 15:29 Source:http://www.dlhuashuo.com Click:

If the Micro-Description of Dalian die processing: the principle of discharge machining is to make the negative electrode infinitely close by mechanical control, but not contact with the positive workpiece, produce a strong electric field. As a result, an electronic current is generated, which impacts the peripheral electrons of the insulating fluid particles, and the number of electrons is greatly increased in the form of pyramids.


Then the atomic particles on the surface of the workpiece are bombarded with high acceleration and velocity to produce high temperature and fall off under the action of blasting force. Of course, the atomic particles of the electrodes will also be bombarded by positive ions, which will produce high temperature and fall off under the action of blasting force. At the same time, a certain number of positive and negative ions and a large number of neutral particles are produced in this process.


Then, some positive ions move to one side of the electrode and adsorb on the surface of the electrode to compensate for the loss. Some negative ions move to one side of the workpiece and are adsorbed on the surface of the workpiece. When the next resting pulse works, all the fallouts will be washed away with the insulating fluid. In practice, when we use different conditions, we have different roughness, speed, loss and spark level.


The reason is that in the above-mentioned process, various changes in time are synchronized to achieve the coordination. Of course, it has a lot to do with the thermal conductivity, melting point, density and other physical properties of electrodes and workpiece materials. The principle of machining is to make the electrodes with negative electrodes infinitely close to each other but not contact the workpieces with positive electrodes by mechanical control, which produces a strong electric field.


It generates electron flow, impacts the peripheral electrons of insulating fluid particles, and increases the number of electrons in the form of pyramids. Then it bombards the atomic particles on the surface of workpiece with high acceleration and speed, which causes them to fall off under the action of blasting force at high temperature. Of course, the atomic particles of the electrodes will also be bombarded by positive ions, which will produce high temperature and fall off under the action of blasting force. At the same time, a certain number of positive and negative ions and a large number of neutral particles are produced in this process.

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