Operation control method for precise electrolytic machining

Abstract

The invention provides an operation control method for precise electrolytic machining. By identifying and controlling basic parameters of an electrolyte, calculating parameters of various machining states, and precisely controlling a machining voltage, a pulse duty factor and a feeding speed, electricity demand corresponding to machining intervals is met, so that steady-state electrochemical reaction is realized. According to the operation control method for precise electrolytic machining, the parameters of the electrolytic machining states are calculated, and a pulse power is precisely controlled, so that the machining intervals and the corresponding machining voltage, electric current density and feeding speed are controlled; the automatic control method for the machining intervals is completely solved; stable constant-interval machining is maintained; and various machining precision requirements of different materials are finally realized.

Description

technical field [0001] The invention relates to the field of electrolytic machining, in particular to an operation control method for precision electrolytic machining. Background technique [0002] Precision electrolytic machining is a subtractive machining technology based on the principle of electrolysis and based on anode dissolution. During machining, the tool is connected to the negative pole of the DC power supply as the cathode, and the workpiece is connected to the positive pole of the power supply as the anode. Electrolyte is passed between the cathode and the workpiece, the power is turned on, and the charge exchange occurs, and the anode workpiece is dissolved, so that it can be processed at a fixed point without touching the workpiece, and different contour shapes, annular channels, straight grooves and Annular grooves, special-shaped holes, mold cavities, molds, etc. do not require subsequent processing procedures. The workpiece materials to be electrolyzed are ...

AI Technical Summary

Problems solved by technology

The existing electrolytic machining technology has not realized the precision machining of metal parts, and the stability is not high; from the appearance, it is mainly caused by the influence of "stray corrosion" on the shape of the side wall surface and the low "leveling ratio" of the front. , the fundamental reason is still that the steady-state electrochemical reaction has not been realized in the processing process, the feeding speed of the cathode and the reaction speed have not reached a balance, the processing gap and the exchange rate of the product are in an unstable state, thus changing the electric field distribution in the processing area , resulting in inconsistent reaction speeds in each area, and even charged ions escape from the interface electric field area, destroying the processed area, so it is difficult to improve processing accuracy and processing stability

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