FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used in producing complex large-size whole-formed parts from sheet billets, primarily, automotive body components. Said part is formed from billed made up of two sheets welded together. Said biller is welded along zigzag line, with its one section being the longest one. Said section is arranged with due allowance for part position in body assembly. Note here that sheets of identical rated thickness from diverse materials are used. Strength, plasticity, fatigue resistance and impact resistance of the first sheet exceeds those of the second sheet used to form lea strained section of the part. Forming comprises blanking, bending, drawing, cutting, straightening, punching and bead forming.
EFFECT: expanded performances, higher quality and reduced specific consumption of materials.
6 cl, 4 dwg
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