The main function of the electrolyte is: as a conductive medium to transfer current; under the action of an electric field to carry out electrochemical reaction, so that the anode dissolution can be carried out smoothly and controlledly; in time to take away the electrolysis products and heat generated in the processing gap for renewal And cooling effect. Therefore, the basic requirements of the electrolyte should have the following points:
It has good processing characteristics, which can make the workpiece material dissolve uniformly at high speed, and try to avoid the formation of insoluble passivation film; metal cations in the solution must not be deposited on the surface of the tool cathode to maintain the correct shape of the tool cathode surface; High conductivity and specific heat capacity; low viscosity to reduce the electrical energy loss and heat generation caused by the resistance of the electrolyte, and make the electrolyte in the processing gap have sufficient flow rate; safe, non-toxic, and low corrosive ; The composition is stable, easy to maintain, and low price.
Deburring machining is a processing method that uses the principle of anodic dissolution of metal in the electrolyte to remove excess material on the workpiece. When the tool is continuously fed, various points on the surface of the workpiece are dissolved at different solution speeds, and the shape of the workpiece gradually approaches the shape of the tool, until the shape of the tool is "reflected" on the workpiece to obtain the desired shape until. When the deburring machine starts, the shape of the anode of the workpiece and the cathode of the tool are different, and the distance from each point on the surface of the workpiece to the surface of the tool is not equal, so the current density of each point is different. The current density passing near the distance is high, the flow rate of the electrolyte is often higher, and the anode solution speed is faster; on the contrary, the current density passing the far distance is small, and the anode solution speed is slower.