The integral impeller is the key part of the aero engine and all kinds of turbine machine. With the increase of the engine capability, the integral impeller becomes more and more complex. The blade becomes thinner and more twisted and the tunnel is narrower. This brought the manufacture of the impeller more barriers. The 5-axis NC machining is flexible, efficient and widely adopted. So it is one of the frequently used manufacturing methods of the integral impeller.
This thesis investigates the 5...