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Advancements in Electrospark Deposition for Component Repair and Restoration

The Electrospark Deposition (ESD) Project, in partnership with PEWG, focuses on the repair of hard chrome plating and non-coated components through innovative localized techniques. Targeting damage requiring a buildup of 0.010 inches or less, repairs can be performed at depots or in-situ, facilitating self-repair processes. The project pioneers restoration methods for components lacking current repair solutions and incorporates advanced demonstration sites including Oklahoma City ALC, Naval Aviation Depot North Island, and Anniston Army Depot. Comprehensive training and testing plans are being developed to ensure effective applications for gas turbine engines and Navy shipboard operations.

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Advancements in Electrospark Deposition for Component Repair and Restoration

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  1. Main Thrusts of Electrospark Deposition Project Project in partnership with PEWG • Repair of hard chrome plating on components • Localized damage • Generally require .010” or less of buildup • Repairs done at depot or in-situ • Repair of non-coated components using same material (I.e., self-repair) • Localized damage • Generally require .010” or less of buildup • Repairs done at depot or in-situ • Restoration of components for which no repair currently exists • Generally self-repair • Requires deposition of large amount of material, up to several mm

  2. Structure of Electrospark Deposition Project • Three principal demonstration sites: • Oklahoma City ALC • Naval Aviation Depot North Island • Anniston Army Depot ESD units acquired and delivered to depots; five days of training included in purchase orders • Develop complete demonstration plan with JTP for gas turbine engine applications • Develop JTP for hard chrome plate repair on selected types of components • Develop test plan for Navy shipboard applications (self-repair) • Develop test plan for leading candidate components (non-engine) at North Island and Anniston (self-repair)

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