Shot Peening is a cold working process, in which the surfaces of components are subjected to substantial impact from small spherical pieces of media called ‘shot’. Each individual ball of shot acts as a tiny peening hammer, creating small indentations or dimples on the surface. This causes plastic deformation in a shallow layer of the component. When the indentations in the surface overlap, the fatigue life of the component is greatly increased.
In the Spring and Gear Manufacturing industries, Shot Peening is used extensively where the benefits of the process are used predominantly to enhance product longevity. Some of the benefits are as follows
In some cases, there is a need for surface treatments to be carried out after the Shot Peening process. These can include: