MODIFIED SHOT PEENING PROCESSES – A REVIEW

Shot peening is widely used surface modification process to improve the surface characteristics such as hardness, fatigue strength etc. of metal components. But the basic shot peening process cannot be efficiently used for all the materials used for industrial applications. So, modifications in shot peening process are also going on, which can be applied for different material surfaces to improve the surface characteristics. Modified shot peening processes such as microshot peening, water jet peening, oil jet peening, cavitation shotless peening and ultrasonic peening have been successfully used for surface modifications. This paper elaborates the use of these different modified shot peening processes and demonstrates the results obtained by different research scholars on different materials.