Rotating table shot peening machine

turbinefor metal

Shot peening is mainly used for parts in the aerospace and automotive industries. These include springs, drive shafts, crankshafts, gear wheels, connecting rods, steering and transmission parts, turbine blades, etc. This measure allows the component weight to be reduced while maintaining the same mechanical load-bearing capacity. Among other things, this results in weight advantages that lead to savings in fuel consumption. What is happening with the surface during shot peening? In the component edge zone, i.e. in the area close to the surface of the components, a residual compressive stress is generated by plastic deformation. This work hardening process increases the service life of the components in terms of fatigue strength, for example. In addition, greater resistance to stress corrosion cracking and vibration crack corrosion can be observed on parts that are subject to strong alternating stresses. What is the difference between shot peening and stress peening? If shot peening is applied under prestress, an additional improvement in the residual stress values achieved is achieved. This effect is called stress peening. It has been scientifically proven that cracks, e.g. due to corrosion fatigue, never occur in a layer with residual compressive stress. The blasting process increases the corrosion resistance and the surface of the workpieces is enlarged. This is important when bonding components, for example.