New Challenges for Shot Peening of Aircraft Gas Turbine Engine Components

Author:  P. Bailey, D.Comassar, J. Whalen, R. Thompson
Source:  The Shot Peener magazine, Vol 07/Issue 2 1992 Surfair IX
Doc ID:  1992045
Year of Publication:  1992
Abstract:  
New shot peening requirements are emerging, driven by aircraft engine customers both in the minitary and commercial sectors. There is increased interest in improving the overall life of engine components to provide continuing gains in engine reliability, operating efficiencies and cost of ownership. The shot peen process, which is applied to a high percentage of the engine components of interest, provide an avenue for such improvement. This report describes work that has been underway for several years at GE Aircraft Engines and GE Corporate R/D and will focus on fundamental process understanding and control strategies for the shot peen process. In depth process knowledge is an essential requisite for significant gains in process repeatability, reliability and process analysis. This work should thus allow the ability to determine quantitatgive benefits of the process that provide the foundation for achieving the long term goal of improved component life.