General Electric Company
PROCESS FOR COATING SUBSTRATES WITH APERTURE(S)

Abstract:

A coating method for a component with at least one aperture includes providing a component having at least one aperture formed in a surface thereof; additively manufacturing a hollow member on a portion of the surface to define a space above each aperture, the portion of the surface being adjacent to the aperture, the hollow member having an inner peripheral geometry complementary to a peripheral geometry at least one of aperture; applying at least one coating over the surface of the component and around hollow member to form an applied coating having an applied coating thickness; and removing at least a portion of the hollow member to make a top portion of the hollow member coplanar with the applied coating to expose the space through the applied coating; wherein a lower portion of the hollow member remains to define the space through the applied coating.