An Experimental Study on the Technique Optimization in Localization Process of 4J36 Invar Alloy-A Micro-Electrochemical Machining Perspective

Abstract

Abstract This study introduces electrochemical processing into the processing of 4J36 Invar alloy to obtain higher processing accuracy. An experimental study based on central composite design (CCD) was carried out to analyze the effects of voltage, duty cycle, feed rate, and inter-electrode gap on the localization of Invar processing. The response surface method is used to establish a mathematical model between process parameters and processing locality. The model shows that the minimum Side Gap is 158.7μm, and the prediction results are verified by experiments. The prediction error of the mathematical model is 1.44%, which means that the proposed optimal mathematical model can solve the optimal processing parameters of 4J36 Invar alloy.It has a positive significance for the wide application of Invar.