Definition
Shot peening is a surface treatment process in which the material surface is exposed to controlled impacts from small spherical media. The goal is to create compressive stress in the surface layer and improve the material’s resistance to fatigue damage.
General Assessment
- Increases the fatigue life of components
- Creates compressive stress in the surface layer
- Reduces the risk of crack initiation and propagation
- Improves wear resistance
- Suitable for dynamically and cyclically loaded parts
- Does not alter the dimensional tolerances of the component
Applications
- Aerospace and space components
- Springs, gears, and shafts
- Bearing parts and rotating components
- Turbines and engine components
- Highly loaded mechanical systems
Concluding Observation
Shot peening is an effective method for extending the service life of components exposed to repeated loading without changing their geometry.
