Manual shot peening intensity and coverage effects on fatigue performance of aluminum alloy

Author:  H. Diep, H. Bae, and M. Ramulu
Source:  Conf Proc 2011: ICSP-11 South Bend, IN USA (pgs. 25-30)
Doc ID:  2011004
Year of Publication:  2011
Abstract:  
Abstract Shot peening has been developed to enhance the fatigue strength of metallic parts. However, improper shot peening can decrease the fatigue life due to induced high surface roughness and residual tensile stress. The effectiveness of the manual shot peening process is accomplished by the control of the process parameters to provide a uniform intensity and coverage throughout the work piece. This research reports the results of manual shot peening conditions and develops a relationship between the fatigue life and peening process parameters on Al 7050-T7451.