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Steel bending


Bending means that the metal sheet first undergoes elastic deformation and then enters plastic deformation under the pressure of the upper or lower mold of the bending machine. In the initial stage of plastic bending, the sheet metal is free to bend. As the upper or lower mold exerts pressure on the sheet material, the sheet material gradually gets closer to the inner surface of the V-shaped groove of the lower mold. At the same time, the radius of curvature and the bending arm also change. Gradually become smaller and continue to pressurize until the end of the stroke, so that the upper and lower molds are in full contact with the plate at three points. At this time, a V-shaped bend is completed, which is commonly known as bending.