Shot Stream Power and Force

Author:  Prof. Dr. David Kirk, Coventry University, U.K.
Source:  The Shot Peener magazine, Vol 27, Issue 3, Summer 2013
Doc ID:  2013030
Year of Publication:  2013
Abstract:  
INTRODUCTION Shot peening is achieved by directing a powerful shot stream at components.The stream’s power depends upon the velocity, flow rate and density of the shot and carrier fluid (normally either air or water). Much of the power of the shot stream is absorbed when it strikes a component causing dents, compressive residual stress and surface work-hardening. The force exerted on components is rarely considered – but is very important. This force can easily be measured, giving an insight into the relative contributions of shot and carrier fluid.