Method of Tight Crack Braze Repair Using Acoustics
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United States of America Patent
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Aug 31, 2016
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Aug 31, 2016
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Abstract
A method for braze repair of tight cracks in a superalloy component is provided. The method includes directing energy, e.g., from an acoustic energy source, towards surfaces of the tight crack to break up one or more contaminants, corrosion products, or oxides at the surface. The directed energy may cause opposed walls of the tight crack to vibrate to break up the oxides, and to generate a modest heat for allowing infiltration of the tight crack with a braze material. The braze material is then melted at a melt temperature of the braze material but below the melt temperature of the component. The braze material is then solidified to repair the tight crack.
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