Electrochemical machining of array flow channels using cathode tool with comb-shaped insulator

The machining quality of array flow channels directly affects the performance of solid oxide fuel cells as they are the key structures on the metallic interconnects of these cells. Electrochemical machining (ECM) is an efficient and low-cost technology for fabricating array flow channels. In the conventional ECM method, the cathode tool is usually designed to have cavity structures above the ribs to avoid collisions between the tool and...