In the electrochemical machining (ECM) of the blisk

the flow field plays an important role in the machining stability

and the inlet angle of electrolyte solution has an important influence on the uniformity of the flow field. For the flow pattern from blade tip to blade root

five inlet angle flow models (12°

22°

32°

42° and 52°) were designed

and the flow field simulation of electrochemical machining was carried out. The results show that the average flow rate is 19.01 m/s and the mean square deviation of flow rate is 6.33 when the inlet angle of electrolyte is 32°

which meets the requirements of flow field for electrochemical machining of the blisk. Under the flow field form with inlet angle of electrolyte solution of 32°

the electrochemical machining experiment of the blisk was carried out. The machining pr

ocess was stable

the surface of the workpiece was free of flow texture

the machining accuracy was 0.12 mm

and the surface roughness was R

a

0.353 μm

which verified the rationality of the flow field.