Patent ID: 8701287

Claim:
A method for aerodynamically shaping leading edges of blisk blades, comprising: machining an initial shape of the leading edges from a solid, the initial shape having the form of an elliptical profile with an overlying material allowance over a length of the leading edge from a radially inner portion of the leading edge at an annulus of the blisk to a radially outer portion of the leading edge at a blade tip, a shape, amount and positioning of the overlying material allowance being determined based on material removal conditions of a subsequent grinding and polishing process; wherein an amount of the overlying material allowance steadily increases from the radially inner portion of the leading edge at the annuals of the blisk to the radially outer portion of the leading edge at the blade tip; subsequently subjecting the leading edges to the grinding and polishing process to remove the overlying material allowance and obtain the elliptical profile of the leading edges.