整体叶盘套形电解加工绝缘套优化方法研究OA

Reducing the deformations of the insulating sleeves during the ECT processes was an im-portant method to improve the stability and accuracy of ECT.This paper proposed an optimization method for the insulating sleeves.With a thin-walled blade of chord length 20 mm,blade height 23 mm,and blade thickness 0.54 mm as an example,tool cathode models with different insulating sleeve structures were es-tablished,FSI simulations were conducted,and the structural parameters of the insulating sleeve reinforce-ment ribs were optimized.Compared with the insulating sleeves without reinforcement ribs,the maximum deformation of the optimized insulating sleeves is reduced from 0.261 mm to 0.020 mm,and the velocity distribution in the machining area becomes more uniform.ECT experiments were carried out on thin-walled blades with insulating sleeve reinforcement widths of 0 mm,1 mm,2 mm,and 4.5 mm respec-tively.The results show that,compared with the insulating sleeve without reinforcement ribs,the value of surface roughness of the machined blades with a reinforcement width of 4.5 mm is reduced from 1.81 µm to 1.05 µm.The method was verified to be effective in reducing the deformations of the insulating sleeve and improving the stability of ECT.