| 摘要 |
A method is provided for bending metal objects, in particular metal plates and objects made of brittle materials, by producing a local change of mechanical properties of material controllable over time and generating local stress fields and fields of internal deformation of controlled development relative to time. First, the metal object is exposed at last once by a concentrated stream of energy, which generates a thermal effect alongside the previously determined bending line, and causes a partial plasticizing and possibly melting and outflow of the material in the region adjacent to the bending line. The concentrated stream of energy is being shifted symmetrically along one side of a designated straight line and heats the surface of a circle having a defined diameter for each point in the time. Immediately upon passage of the energy stream, the locally heated zone is cooled at ambient temperature or by means of a cooling gas agent until the local disappearance of the temperature gradient is obtained within the thickness of the object.
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