METHOD OF MAKING SHELLS OF SHEET BLANKS Russian patent published in 1994 - IPC

Abstract RU 2019340 C1

FIELD: metal pressure forming. SUBSTANCE: method comprise steps of welding two blanks along their perimeters with formation of semifinished product, having an inner cavity; forming the semifinished product in conditions of material superductility under a pressure of a medium, created in its inner cavity; placing the blanks one over another in such a way, that their rolling directions were coincided. EFFECT: elimination of asymmetrical shape of the shell due to arrangement of the welded seam in one plane. 1 cl

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RU 2 019 340 C1

Authors

Кruglov А.А.

Dates

1994-09-15—Published

1992-02-25—Filed