Experiment and modeling into drilling of micro-hole on TC4 by electrochemical jet machining

Experiment and modeling into drilling of micro-hole on TC4 by electrochemical jet machining

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This paper studied the rule of micro-hole in electrochemical jet machining (EJM) of TC4 alloy and established the mathematical model of machining process and predicted the machining profile.Considering the influence of machining gap and machining time, orthogonal experiment was designed.This paper established the mathematical model of the electrochemical jet machining process of TC4 alloy based on the response surface analysis (RSA) method.

The results indicate that the electrochemical jet can improve Shampoos the directivity of machining, reducing the machining gap can improve the machining efficiency, but the jet will cause secondary corrosion and abrupt change of current at the edge of inlet.The mathematical model based on response surface analysis is accurate after variance test.The experimental results show that penisj the average error between the established prediction model of machining depth and the actual value is 2.

32%, and the average error of the prediction model of inlet radius is 2.18%.