Significant progress has been made in the integrated manufacturing research of novel heat pipes and gradient liquid-absorbing core structures based on electrochemical deposition additive manufacturing.

According to the news from the Institute of Metal Research of the Chinese Academy of Sciences, the Department of Materials Control and Formability Research, jointly with the Belarusian National Academy of Sciences Scientific-Practical Materials Research Center and Jiangxi Nailer Copper Industry Co., Ltd., has recently developed an electrochemical deposition additive manufacturing technology. This technology can efficiently grow porous copper wicking core structures in situ on the surface of grooves, achieving controllable adjustment of the gradient distribution of porous copper pore size from nano to micrometer scale using atomic-level stacking method. The capillary force of the wicking core structure with electrochemical additive gradient prepared by this method is twice higher than that of traditional copper powder sintering wicking core structure, and the single tube heat dissipation power of grooves with gradient wicking core structure is doubled compared to traditional grooved pipes. This method solves the integrated manufacturing problem of grooves and gradient wicking core structures, providing strong support for the application of the new generation of high thermal conductivity copper heat pipes in AI computing center heat dissipation.