FIELD: metallurgy.
SUBSTANCE: inventions of the group relate to the field of metal forming and can be used for production of stamped products. At the first stage of stamping in the first mold from processed material the intermediate product of stepped profile of the upper sheet section is pierced, which has time section of vertical wall located near to upper sheet section through ridge section and at least part of the vertical wall section shape, and temporary flange section adjoining the temporary wall temporary section through the temporary ridge section. At the second stage of forming in the second mold from the produced intermediate molded item the product is stamped, during which the time ridge section is moved to the temporary flange section with at least part of the top sheet section of the limited intermediate molded item.
EFFECT: higher quality of the stamped product due to elimination of cracks and wrinkles.
8 cl, 23 dwg
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