Method for producing an article with a fluid passage

Details Method for producing an article with a fluid passage Method for producing an article with a fluid passage

B - Operations, Transporting

23

P

26/150

B23P 15/02 (2006.01) B23P 15/04 (2006.01) F01D 5/18 (2006.01)

Patent

CA 1217924

METHOD FOR PRODUCING AN ARTICLE WITH A FLUID PASSAGE ABSTRACT OF THE DISCLOSURE A fluid-cooled article, such as a turbo- machinery blazing member, is provided with a fluid passage by a method of depositing a first material on a work surface of a mandrel by low pressure plasma deposition. A first member thus generated is separated from the mandrel. In one form, an inner surface of the first member is provided with a surface groove. After cover material is applied to entrap the sacrificial material in the groove, a cover material is applied to entrap the sacrificial material. Removal of the sacrificial material provides the fluid passage.

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