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DOE OSTI · 1433374

Article and method for making an article

Lacy, Benjamin Paul·Schick, David Edward·Kottilingam, Srikanth Chandrudu
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Abstract

An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of depositing a metal alloy powder to form an initial layer including at least one aperture, melting the metal alloy powder with a focused energy source to transform the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder to form a layer including at least one aperture corresponding to the at least one aperture in the initial layer, melting the additional layer of the metal alloy powder with the focused energy source to increase the sheet thickness, and repeating the steps of sequentially depositing and melting the additional layers of metal alloy powder until a structure including at least one aperture having a predetermined profile is obtained. The structure is attached to a substrate to make the article.

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Lacy, Benjamin Paul, Schick, David Edward, Kottilingam, Srikanth Chandrudu. 2018-04-03. Article and method for making an article. https://www.osti.gov/biblio/1433374

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