ADJUSTING AIRFLOW IN TURBINE COMPONENT BY DEPOSITING OVERLAYMETALLIC COATING

摘要

A method for adjusting the airflow in a turbine component (22, 26) having a plurality of airflow holes (122). The method comprises the step of depositing an overl ay metallic coating (130) on the surface (74, 82) of the turbine component (22, 26) in a manner such that at least some of the airflow holes (130) are partially fill ed such that the volume of the partially filled airflow holes (122) is changed so as to adjust the airflow through the turbine component (130). Also provided is a turbine component (22, 26) having a plurality of airflow holes (122), at least some of the airflow holes (122) being partially filled with the overlay metallic coating (130) to chan ge the volume thereof so as to adjust the airflow through the turbine component (22 , 26).