FIELD: plastic metal working, possibly cold forming of bellows of thin-wall cylindrical blanks. SUBSTANCE: apparatus for forming bellows includes Die, pressure lids and hydraulic head with collar and separating gaskets. At least one pressure lid has at least one annular turning for deforming and moving edge of blank. Said turning may rectangular or cone-like one. EFFECT: possibility for making bellows with high accuracy of dimension and with uniform thickness of wall. 3 cl, 6 dwg
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|---|---|---|---|
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