FIELD: process engineering.
SUBSTANCE: set of invention relates to metal forming and may be used in producing bicurved surface shells. Separate parts are preformed. Here, to compensate for welding strains from welding seam shrinkage, parts made from titanium or steel are produced with undercurved edge while parts from aluminium are made with fluted edges all over their edges in the zone of post-welding deformation with width making 8-10 S where S is part thickness.
EFFECT: higher quality of bicurved surface shells.
8 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2393946C2 |
