The groove structure of the blade for the turbine inlet side of laser cladding

The present invention provides a turbine blade bevel configuration for laser cladding the intake side, which can effectively avoid interference with the shroud when the locking laser cladding, and can ensure that the final machining of cladding layer from the backing sheet to the intake side gradually thickening, to ensure the intake side of the blade near the laser cladding thickness to meet the requirements of different locations on water erosion resistance. Wherein: the steam turbine blade groove position in a direction extending from the inlet side to the root to the blade tip shroud, a smooth arcuate groove cross-section of a blade edge is inclined to the backing blade inlet side and the intake side surfaces smooth transition connection configuration, is connected to an intake side surface is perpendicular to the arc surface of the inner blade.