TY - JOUR
AU - Zhu, Di
AB - A metal plate with serpentine channels is typically used as an interconnecting plate as one of the key components of a fuel cell. Electrochemical machining (ECM) is a promising method for fabricating such bipolar plates due to its efficiency and low cost. Traditionally, electrolyte flows through the inter-electrode gap from the inlet to the outlet parallel to the surface of the workpiece. However, the special structure of serpentine channels easily causes uneven velocity distribution and product accumulation in the processing zone. To improve the inter electrode state in ECM serpentine channels, a new flow field named “coded flow field” is proposed. By alternately arranging the inlet and outlet on the cathode, the electrolyte flows through the inter-electrode gap along the width of the channel. The electrolyte flow path is significantly shortened, and the uniformity of velocity distribution in the processing area is improved. Multi-physical field simulation and flow field simulation are carried out accordingly. The proposed flow field is confirmed to have a more uniform flow field and less product accumulation. Subsequently, experiments were conducted, and the results showed that the workpiece processed using the proposed electrolyte flow field had fewer surface defects and a higher surface quality.
TI - Flow field optimization of pulse dynamic electrochemical machining for serpentine channels on stainless steel plates
JF - The International Journal of Advanced Manufacturing Technology
DO - 10.1007/s00170-023-12415-9
DA - 2023-12-01
UR - https://www.deepdyve.com/lp/springer-journals/flow-field-optimization-of-pulse-dynamic-electrochemical-machining-for-LCpdiU4TPu
SP - 3563
EP - 3576
VL - 129
IS - 7-8
DP - DeepDyve
ER -