Fraunhofer Institute for Mechanics of Materials IWM
Shot peening is a widely used surface treatment to improve the static and cyclic strength of metal components based on the mechanical strengthening of surface layers and the incorporation of more advantageous compressive residual stresses. In close cooperation with industrial partners, we determine the optimum shot peening parameters in feasibility studies and measure depth-dependent residual stress profiles in our stress measuring laboratories. We also determine the hardness, fracture toughness and static as well as cyclic load bearing capacity of the surface layer. We analyze surface properties such as coverage ratio, roughness and micro-cracking with further technical measurement methods. Fundamental investigations regarding the forming of components by means of shot peening and shot blasting are also integral elements of our area of expertise.
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