Particle Velocity Sensor for Improving Shot Peening Process Control

Author:  Barker, Young, Pouliot
Source:  Conf Proc: ICSP-9 (pg 385-391)
Doc ID:  2005114
Year of Publication:  2005
Abstract:  
ABSTRACT The shot peening industry has used Almen strips for many years as a means to measure the intensity of the peening process. As is widely understood, peening intensity is proportional to the particles kinetic energy, therefore if one were able to accurately measure the shot particle velocity you would also be able to determine intensity. A new non-laser based shot velocity sensor that is capable of detecting particle velocities for a wide range of peening media including steel, stainless steel, glass bead, ceramic and others is described. Examples are presented showing particle velocities and their associated Almen intensities. In addition, results are presented which show that some process parameter combinations yield unstable results.