For the electrochemical machining of super-alloy blades with complex curved surface

the requirements of high precision for the size and shape of inlet and exhaust sides should be met. The process parameters of blank thickness

margin

electrolyte conductivity and voltage have important effects on the machining accuracy of the front and rear edges. In order to find out the four main process parameters on the influence law of machining accuracy and machining time

the processing surface and processing time of a compressor were studied. In this paper

DOE test design was used to optimize the electrochemical machining process of the blade

eight samples were designed by using partial factors

and the performance of all samples was compared and analyzed by using Minitab software. The results show that the main parameters affecting the machining accuracy of the front and rear edges of the blade are blank thickness

margin and electrolyte conductivity. The main parameters that affect the processing time are blank thickness

electrolyte conductivity and voltage. After optimization

the process parameters were blank thickness 10mm

margin 0.99mm

electrolyte conductivity 134.7mS/cm2

voltage 20V

respectively. The precision of the front and rear edges obtained under this parameter is stable at 0.06mm

and the processing time is stable at 20min.