| 摘要 |
The method involves forming blade channels (3) between blades (2, 2a), and forming blank shape-openings for blade channels using a program-controlled machining device e.g. fivefold-computer numerical control-milling machine. Electrodes of an electric discharge machining device or an electrochemical spark machining device are introduced in the openings, which are permanent. A part of predetermined shape of the blade channels is formed using electric discharge machining or electrochemical spark machining. |
