Patent ID: 7805839
Filing Date: 2010-10-05
Classification: B21D,B23P,F01D,F04D,F05D,Y02T,Y10T

Abstract:
1. A method of manufacturing a metal leading edge of a turbine fan blade, comprising: providing an elongated metal part having a front edge extending lengthwise of the part, a rear edge extending lengthwise of the part, and a generally wedge-shaped transverse cross-section with opposite sides diverging from the front edge toward the rear edge; cutting a cavity inward from the rear edge toward the front edge to provide the part with a generally V-shaped transverse cross-section having opposite side walls diverging rearwardly; shaping the part by inserting a mandrel into the cavity and deflecting the side walls toward each other to constrict the cavity into the configuration of the mandrel; and mounting the part as a metal leading edge by inserting a turbine fan blade component into the constricted cavity and fastening the part to the component.