Why to beat metal with steel balls? Read the whole process of shot peening on metal surface
Shot peening is a process that uses high-speed shot peening to strengthen the surface of the workpiece, to improve part of the mechanical properties and change the surface state of the workpiece. Shot peening can be used to improve mechanical strength, wear resistance, fatigue resistance and corrosion resistance of parts. It can also be used for surface extinction, peeling and eliminating residual stress of casting, forging and welding parts.