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CHAMBERSBURG, Pa. - David Wible, a welder at Letterkenny Army Depot, demonstrates the cold spray advanced manufacturing initiative Feb. 2. Cold spray is an additive, solid-state thermal spray that can restore a component's critical dimensional features that have been lost due to corrosion, wear or mechanical damage. A cold spray machine can deposit layers of material onto parts to fill in cavities and coat surfaces, and since the process doesn't require high heat to bind the materials, repairs can be performed on thermally sensitive components.


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