Patent ID: 7293964
Filing Date: 2007-11-13
Classification: B23P,F01D,F05D,Y10T

Abstract:
1. A repair method for a blade of a turbomachine, in which at least a partial area of a leading edge of the blade is removed, comprising: making a cutback on the blade between two points (A) and (E) whose positions on an original profile of a leading edge of the blade follow the following relationship: point (A) is a starting point and lies within a range of a relative blade height (h/H) of and point (E) is an end point and lies within a range of the relative blade height (h/H) of wherein, (h) is a blade height coordinate which originates at an end of the blade which is closer to the starting point (A), and in which (H) is the blade height, a trace of the cutback is defined by a relationship of relative cutback position (s/S and, the local cutback length (c) gradually increases from point (A) to its maximum within the range of 0.60<(s/S