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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of providing a metal alloy powder; forming an initial layer with the metal alloy powder, the initial layer having a preselected thickness and a preselected shape, the preselected shape including at least one aperture; sequentially forming an additional layer over the initial layer with the metal alloy powder, the additional layer having a second preselected thickness and a second preselected shape, the second preselected shape including at least one aperture corresponding to the at least one aperture in the initial layer; and joining the additional layer to the initial layer, forming a structure having a predetermined thickness, a predetermined shape, and at least one aperture having a predetermined profile. The structure is attached to a substrate to make the article.
LACY, Benjamin Paul (Greenville, SC), SCHICK, David Edward (Greenville, SC), KOTTILINGAM, Srikanth Chandrudu (Simpsonville, SC)
14/ 496,828
September 25, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0001] This invention was made with government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The government has certain rights in this invention.