Masking and sealing system for multi-step surface treatment

A system for surface treatment of a component with a bore, the system comprising:

• a fixture system configured to carry the component during the surface treatment, including first and second fixture plates disposed on opposite ends of the component from each other;
• first and second inner sleeves inserted into the bore of the component to mask and seal at least a portion of the component inside the bore, the first inner sleeve including a first end and a second end, the second end extending into the bore further than the first end, and the second inner sleeve including a third end and a fourth end, the fourth end extending into the bore further than the third end;
• an anode engaging the first inner sleeve at the second end and engaging the second inner sleeve at the fourth end, the anode extending through the bore between the first and second inner sleeves, the anode fixed in position within the component by engaging the first and second inner sleeves;
• an outer sleeve extending between the fixture plates to seal outside of the component;
• and
• a pair of fixture rods extending through the first and second fixture plates and coupling the first and second fixture plates together,
• wherein the system is configured to effect surface treatment of an exposed area of the component, at least a portion of the exposed area disposed between the first and second inner sleeves.

A system for surface treatment of a component with a bore where the surface treatment is effected in a treatment zone in the bore, the system comprising:

• a fixture system configured to carry the component during the surface treatment, including a pair of fixture plates disposed on opposite ends of the component, wherein the opposite ends include a first end and a second end;
• a pair of inner sleeves inserted into the component sealing a portion of the component, the pair of inner sleeves including a first inner sleeve extending into the bore from the first end to a first point along the bore and a second inner sleeve extending into the bore from the second end to a second point along the bore;
• an anode positioned within the component by the inner sleeves, the anode engaging the first and second inner sleeves and disposed in the bore between the first and second points along the bore so that the anode faces the treatment zone;
• and
• an outer sleeve extending between the fixture plates to seal outside the component;
• wherein the system is configured to allow a fluid to circulate through the component to effect plating of an exposed area inside the component during a multi-step plating process, the exposed area disposed between the inner sleeves and around the anode, the system configured to maintain all surfaces of the component, except at the exposed area, in a dry state during the multi-step plating process and to allow fluid to drain from the system between steps of the multi-step plating process.