Flow Field Analysis of Cylindrical Array Structurer in Electrochemical Machining Titanium Alloy Blades

Titanium alloy has good stiffness and corrosion resistance. It has a wide range of applications in the aerospace industry. In electrochemical machining, high speed and uniform electrolyte flow are important to achieve a stable machining process. This paper presents a cylindrical array microstructure cathode. Different fluid models were established by changing the characteristic parameters of the array microstructure. And CFD software was used for numerical simulation. Numerical calculations show the electrolyte flow uniformity is best when spacing is 100 $\mu \mathrm{m}$ and arrangement is rectangular. Relevant ECM experiments were performed. Microstructure cathodes with all four parameters can achieve stable processing for at least 1500 s. The surface quality of the blade processed by the cathode with the optimal flow method obtained from the simulation result is the best, and reached 0.574 $\mu \mathrm{m}$. This paper's process methods apply to the extended manufacturing of difficult-to-process materials.