The Little Book on Shot Peening

Author:  Jack Champaigne
Source:  Electronics Inc, The Shot Peener
Doc ID:  2001014
Year of Publication:  2001
Abstract:  
Shot peening is a special metal surface treatment intended to extend the fatigue life of most metals. The impact of small spherical media called shot creates a dent in the surface that is very beneficial in preventing formation of fatigue cracks. The area below each dent called the plastic zone, typically only .020 inch deep, is highly compressed and this action tends to keep cracks from opening in the surface. Valve springs, suspension springs, leaf springs, torsion bars, gears and connecting rods are all treated with shot peening to extend their service life. This book will explain the essential elements necessary to properly apply shot peening. The most important thing to remember is