High Pressure Fuel Injection Systems: Shot Peening and its Effect on Residual Stress

Author:  Students: Rachel Butler, Yuheng Du, Heather Macdonald, Kerui Sun. Faculty Advisor: Professor John Blendell
Source:  Purdue University
Doc ID:  2016041
Year of Publication:  2016
Abstract:  
Almen Intensity and residual stress were characterized by varying shot peening parameters and measured by X-ray diffraction(XRD. Hardness, surface roughness, and residual stress(RS)depth profiles were conducted on 4140 and 52100 steels as well as Almen strips to analyze the effects of variation in shot media size, shot pressure, and shot type. Hardness variation was seen to be the most influential variable in roughness and RS.