Cathode and its Feeding Path Design in the NC-ECM Process of the Rimed Integral Impeller
At present, the rimed integral impeller is machined mainly by NC-electro-discharge machining (NC-EDM). To raise the efficiency of EDM process, the pre-channel is machined by NC-ECM to replace NC-EDM in rough machining process. The experimental results indicate that the whole process efficiency can be improved by not less than 20%, but the design of cathode and its feeding path in NC-ECM is a skilled and costly work. To improve machining accuracy and simplify design process, a new design approach based on simulating the shaping process of NC-ECM was put forward to design the cathode and its feeding path.
Dunwen Zuo, Hun Guo, Guoxing Tang, Weidong Jin, Chunjie Liu and Chun Su
J. S. Zhao et al., "Cathode and its Feeding Path Design in the NC-ECM Process of the Rimed Integral Impeller ", Key Engineering Materials, Vols. 426-427, pp. 156-160, 2010