Internal turbine component electroplating

Apparatus for electroplating a surface area of an internal wall defining a cooling cavity present in a gas turbine engine component having a first end region with an opening into the cooling cavity and a second end region that is closed, comprising:

• a first electrically insulating mask configured for fitting on the first end region of the component where the cooling cavity has a cavity open end to the exterior;
• an anode extending through the first mask and the opening into the cooling cavity, the first mask supporting the anode in electrically insulated relationship to the component with the anode extending into the cooling cavity;
• a second electrically insulating mask configured for fitting on the second end region exterior to the cooling cavity;
• a cathode extending through the first mask to contact the component;
• and
• an electroplating solution supply conduit or passage extending through the first mask adapted to supply electroplating solution to the cooling cavity.