Important Factors in Drawing And Bending

In the process of drawing and bending, improper selection of processing parameters will cause the phenomenon of buckling and wrinkling on the web, which is also an important factor to be considered. Extruded profile is considered as a special sheet metal material, the size of the material itself is much smaller than the size of the other two directions, so in the forming process can usually be regarded as completed in the plane stress state.

For the bending parts requiring higher precision, larger length and radius of curvature and smaller transverse size, the bending can be carried out on a special stretching and bending machine. When stretching and bending, all the thickness of the plate are subjected to the action of tensile stress, so only elongation deformation, after unloading rebound caused by small deformation, easy to ensure accuracy.

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