METHOD FOR INCREASING A FATIGUE STRENGTH OF A METALLIC COMPONENT, WHICH IS PROVIDED WITH AT LEAST ONE CAVITY, WHILE SUBJECTING IT TO A CYCLIC INNER PRESSURE LOAD

摘要

The present invention relates to the fatigue strength (1) for increasing metalwork, the especially motor vehicle of the fuel injection system of component (1), the component has at least one cavity (4). In the pressure period, component (1), in the effect of its cavity (4), the pressure being subject to, i.e. this component (1) undergo semi plastic deformation to generate the components interior (1) inside compressing force at least piecewise. In addition, the component (1) is higher than room temperature temp of heating element in a temperature treatment phase.