Study on improvement of transfer accuracy in ECM of fine taper hole

抄録

Electrochemical machining can be used to create fine taper holes by transferring the electrode shape to straight fine holes. However, its transfer accuracy is low, and the relationship between the electrode taper angle and the transfered hole angle is not clear. The aim of this study is to find machining parameters improving the transfer accuracy and to clarify the relationship between the electrode taper angle and the transfer taper angle. Experiments by changing the electrode taper angle, the electrolyte flow rate and the electrolyte concentration were conducted to investigate the relationship between the electrode taper angle and the transfer taper angle, and the transfer accuracy.