Shot peening is a cold working process used to generate a compressive residual stress layer. Most practical and cost effective method to induce surface residual stress is controlled shot peening, it help to extend life of critical component. The variation in shot peening parameters like angle of incidence, distance between nozzle and workpiece, time of peening, velocity of peening, can affect optimized solution to improve fatigue properties of material by using Taguchi method, ANN etc.

Keywords : Shot Peening, Controlled Shot Peening Parameters of Shot Peenong.