Material property-changing process in which a tool with flaps rotate and turn on the material to provide a local hardening surface. Beskrivning The process The tool consists of two panels with flaps mounted on a rotating shaft. The top of the flaps have high strength cast mandrel that scrapes the material, deforming its surface which results in residual stresses. This increases the corrosion resistance, improves fatigue strength and reduces the risk of cracking. Roto-peening Process films
