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Centrifugal Barrel Finishing Of Turbine-Blade "Fir Trees"Modified centrifugal barrel-finishing machine imparts desired residual compressive stresses to "fir trees" of turbine blades. Centrifugal forces generate compressive stresses, which are transmitted to turbine blades through abrasive slurries in which suspended. Eliminates need for shot peening, rounding of edges and burrs caused by shot peening and, consequently, need for mass finishing operations to remove burrs. Improves surface finish of "fir trees".
Document ID
19900000303
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Mandel, Johnny L.
(Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 6
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-29553
Accession Number
90B10303
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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