Shot Peening Coverage Requirements

Author:  Prof. Dr. David Kirk, Coventry University, U.K.
Source:  The Shot Peener magazine, Vol 26 / Issue 3, Summer 2012
Doc ID:  2012024
Year of Publication:  2012
Abstract:  
ACADEMIC STUDY INTRODUCTION Users require that their components should be peened to specified levels of coverage. They also require that the shot stream used has specified characteristics – such as intensity, shot size and type. The term “coverage” is well-understood as being the percentage of the peened surface that has been indented at least once. Testing for coverage is quite independent of testing for intensity and should be determined using specified procedures – such as those described in SAE J2277 “Shot Peening Coverage Determination.”