TURBINE BLADE REPAIR METHOD USING ADDITIVE MANUFACTURING

A turbine blade (200) repair method is provided. The turbine blade (200) repair method includes quantizing a position and a shape of a damaged portion of a turbine blade (200) into numerical values (S110), calculating a momentum loss of the turbine blade (200) due to removal of the damaged portion(S120), modeling a shape of a repair portion to replace the damaged portion so that the repair portion has the same momentum as the damaged portion (S130), removing the damaged portion (S140), and forming the modeled repair portion by performing an additive manufacturing at a position of the removed damaged portion (S150).