Generating compressive residual stresses in generative manufacturing

The present invention relates to an apparatus and a method for generative manufacture of components, particularly for the production of components for flow machines, in which the component at least partially built up in layers on a substrate or a previously created part of the component, wherein a layered structure by layerwise melting is from powder material having a high energy beam and solidifying the powder melt, wherein the energy beam along a path over the powder material moves, and wherein a melting region formed by the energy beam at the front of the path and then a solidification range is formed in the path, wherein the solidification range the temperature distribution is selected temporally and / or locally so that compressive stresses arise in the solidified or solidifying powder material.