Prediction and Control of Indent Diameter

Author:  Dr. David Kirk, Coventry University, U.K.
Source:  The Shot Peener magazine, Vol 18 / Issue 2, Spring 2004
Doc ID:  2004056
Year of Publication:  2004
Abstract:  
INTRODUCTION Shot peening control is based on satisfying two specified parameters - PEENING INTENSITY and COVERAGE. Peening intensity is independent of the component's properties, being defined by the reaction of Almen strips. Coverage, on the other hand, is a component-specific parameter in that a defined percentage of the component's surface should be covered with at least one indentation. Indent diameter connects both parameters. The larger the average indent diameter the greater will be both the peening intensity and the coverage (for a given number of indents). It follows that control of the indent diameter allows control of both of the specified parameters.