Turbo-machine impeller manufacturing
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United States of America Patent
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Feb 27, 2018
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app pub date -
Feb 20, 2013
filing date -
Feb 23, 2012
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Abstract
A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure.
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