METHOD OF MODIFYING A SUBSTRATE FOR PASSAGE HOLE FORMATION THEREIN, AND RELATED ARTICLES
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United States of America Patent
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Dec 23, 2010
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Dec 23, 2010
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A method for the formation of at least one passage hole in a high-temperature substrate is described. For each desired passage hole or group of passage holes, a node is first formed on the exterior surface of the substrate, by a laser consolidation process. The node functions as a pre-selected entry region for each passage hole. The passage hole can then be formed through the node, into the substrate. Related articles, such as turbine engine components, are also described.
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