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ARTICLE AND METHOD OF FORMING AN ARTICLE

United States Patent Application

20160303656
A1
View the Complete Application at the US Patent & Trademark Office
Provided are an article and a method of forming an article. The method includes providing a metallic powder, heating the metallic powder to a temperature sufficient to joint at least a portion of the metallic powder to form an initial layer, sequentially forming additional layers in a build direction by providing a distributed layer of the metallic powder over the initial layer and heating the distributed layer of the metallic powder, repeating the steps of sequentially forming the additional layers in the build direction to form a portion of the article having a hollow space formed in the build direction, and forming an overhang feature extending into the hollow space. The article includes an article formed by the method described herein.
LACY, Benjamin Paul (Greer, SC), KOTTILINGAM, Srikanth Chandrudu (Simpsonville, SC), DUTTA, Sandip (Greenville, SC), SCHICK, David Edward (Greenville, SC)
14/ 688,436
April 16, 2015
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 right in this invention.