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Machine translation
1. (WO1980001253) METHOD OF MAKING HOLLOW ARTICLES BY DEEP-DRAWING AND PRESS FOR IMPLEMENTING THAT METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001253    International Application No.:    PCT/SU1979/000103
Publication Date: 26.06.1980 International Filing Date: 30.10.1979
IPC:
B21D 22/20 (2006.01), B21D 24/04 (2006.01)
Applicants:
Inventors:
Priority Data:
2699842 21.12.1978 SU
Title (EN) METHOD OF MAKING HOLLOW ARTICLES BY DEEP-DRAWING AND PRESS FOR IMPLEMENTING THAT METHOD
(FR) PROCEDE DE FABRICATION D"ARTICLES CREUX PAR ETIRAGE EN PROFONDEUR ET PRESSE POUR LA MISE EN OEUVRE DE CE PROCEDE
Abstract: front page image
(EN)A method of making hollow articles by deep-drawing under changing fluid-pressure. A press (3) for making hollow articles by deep-drawing comprises a high pressure vessel (1) with a female (3) and a male (4) dies therein. The workpiece (14) is placed in a ring-shaped high pressure chamber (16) connected with a high pressure chamber (19) of a fluid-pressure converter (20). The press comprises as well a means (27) for regulating the pressure in the ring-shaped chamber which is exerted on the peripheral area of the workpiece, a pressure presetting device (39) being executed as a changeable cam with a profile following a curve characterizing pressure changes in the ring-shaped chamber (16).
(FR)Methode de fabrication d"articles creux par etirage en profondeur dans des conditions de pression de fluide variables. Une presse (3) pour fabriquer les articles creux par etirage en profondeur comprend une enceinte a haute pression (1) avec une matrice femelle (3) et une matrice male (4) a l"interieur de l"enceinte. La piece (4) est placee dans une chambre en forme d"anneau a haute pression (16) connectee a une chambre a haute pression (19) d"un convertisseur a pression de fluide (20). La presse comprend egalement des moyens (27) de regulation de la pression dans la chambre en forme d"anneau qui s"exerce sur la zone peripherique de la piece, un dispositif de prereglage de la pression (39) sous forme d"une came interchangeable dont le profil presente une courbe caracteristique des changements de pression dans la chambre en forme d"anneau (16).
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)