[Introduction]The conventional side deposition process for manufacturing ultrathin diamond cutting blades often results in inconsistency between the two sides,leading to asymmetric cutting forces and processing defects.A novel technology based on electrochemical circumferential 3D printing was proposed to explore the possibility of circumferentially growing annular ultrathin blades.[Method]The mechanism of forming annular nickel sheets in a rotating state was explored by using a home-made electrochemical circumferential 3D printing experimental platform.Initially,a proportional two-dimensional simulation model was established,and COMSOL Multiphysics finite element simulation software was employed to simulate the effects of different electrodeposition parameters on the contour of the deposition layer and the distribution of electrolyte current density.Subsequently,single-factor experiments were conducted to study the effects of processing current and cathode rotation speed on the morphology and uniformity of nickel sheets.[Result]Nickel sheets with good uniformity were obtained by electrodeposition on 45 steel substrates with a diameter of 50 mm at a current of 0.10 to 0.15 A,an inter-electrode distance of 1.5 mm,and a cathode rotation speed of 1.0-1.5 r/s.[Conclusion]This research lays the foundation for using electrochemical circumferential 3D printing to prepare precision cutting blades.