Patent attributes
Disclosed is a turbine blade including a blade part having an airfoil in a cross section having a leading edge, a trailing edge, and a pressure surface and a suction surface connecting the leading edge and the trailing edge, the blade part extending radially from a platform part to a tip portion as a free end in the turbine blade, wherein a cavity through which cooling air flows is formed inside the turbine blade, wherein a squealer tip having a predetermined thickness protrudes along an edge of the tip portion so that a squealer pocket is formed on an inner side of the tip portion by the squealer tip, wherein the squealer tip is provided with a cooling hole communicating with the cavity along a radial direction of the turbine blade, and wherein an undercut is formed around the cooling hole of the squealer tip by cutting a part of the squealer tip in a circumferential direction.
