Electrospark deposition system for repair of gas turbine
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United States of America Patent
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May 1, 2018
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N/A
app pub date -
Sep 21, 2015
filing date -
May 15, 2012
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Abstract
A system and method for repairing a metal substrate includes an electrospark device and an electrode removably supported in the electrode holder. The electrospark device applies a coating of a material when placed into contact with the metal substrate. A cooling device to lowers the temperature of shielding gas flow below an ambient temperature. A conduit is arranged to direct a flow of the shielding gas to the interface of the electrode and the substrate to cool the area of the substrate receiving the coating.
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