Peening and Wet Peening

Author:  G. Wallis, Vapormatt Limited
Source:  The Shot Peener magazine, Vol 05/Issue 1, Spring 1991
Doc ID:  1991107
Year of Publication:  1991
Abstract:  
INTRODUCTION The techniques of "cold hammering" metal objects to significantly improve their life and performance is as old as metal working itself. The swordsmith and the blacksmith continued to hammer the metal for some time after it was shaped and until the craftsman "felt" it was right. This hammering, or peening, is fully recognized today and is frequently written into the production requirement for high stress components. The surface compression induced by peening reduces the incidence and frequency of fatigue failure and so extends component life.