Abstract: The disclosure provides a turbine blade. A turbine blade includes a shroud at a tip of the blade and an airfoil having a leading edge extending between the shroud and a root of the blade; a cutout portion extending at least along the leading edge of the airfoil nearest the shroud; an insert welded to the cutout portion at a weld region; and a weld-free region located between the insert and the cutout portion nearest the shroud.

Abstract: The disclosure provides a turbine blade. A turbine blade includes a shroud at a tip of the blade and an airfoil having a leading edge extending between the shroud and a root of the blade; a cutout portion extending at least along the leading edge of the airfoil nearest the shroud; an insert welded to the cutout portion at a weld region; and a weld-free region located between the insert and the cutout portion nearest the shroud.

Abstract: A blade of a turbomachine comprises an airfoil portion; the airfoil portion extends longitudinally; the airfoil portion is defined laterally by an external surface; the airfoil portion has a 3D and twisted shape and has an internal cavity; the blade is in a single piece. Furthermore, the blade is designed for a rotor or stator array; the rotor or stator defines a radial direction and an axial direction; the external surface of the airfoil portion has a leading edge and a trailing edge; the leading edge and/or the trailing edge shifts backward or forward in the axial direction moving in the radial direction; the internal cavity extends along substantially the whole longitudinal length of the airfoil portion. Additive manufacturing is particularly effective and advantageous for such blade.