Patent ID: 8776370
Filing Date: 2014-07-15
Classification: F01D,F05D,Y10T

Abstract:
1. A method of maintaining a serviceable component of a gas turbine engine, comprising: selecting a used component; moving a fluid that entrains an abrasive material against a surface of the used component; removing material from the used component using the abrasive material that is in contact with the surface of the used component, wherein the step of removing smooths the surface of the used component that is in contact with the abrasive material; and moving the fluid against the surface by operating the gas turbine engine to circulate the fluid, wherein the used component defines a film cooling hole having an exit with an edge curvature radius, and the step of removing reduces the edge curvature radius to reduce material stress, wherein the used component is attached to the gas turbine engine in an installed position during the step of moving the fluid and the step of removing material.