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2 040 352

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(51)

IPC

(21) (22)

Application

93019949/02, 1993-04-19

(22)

Actual filing date

1993-04-19

(45)

Published

1995-07-25

(72)

Inventor

Duev Veniamin NikolaevichTolstikov Rehm MikhajlovichAleshin Vladimir Arkad'EvichMoiseev Gennadij PetrovichZel'Dovich Leonid Solomonovich

(73)

Holder

Duev Veniamin NikolaevichTolstikov Rehm MikhajlovichAleshin Vladimir Arkad'EvichMoiseev Gennadij PetrovichZel'Dovich Leonid Solomonovich

METHOD OF MAKING SHAPED HOLLOW SECTIONS WITH CONCAVE PORTION OF THEIR OUTER SURFACE AND TOOL FOR PERFORMING THE SAME Russian patent published in 1995 - IPC

Abstract RU 2040352 C1

FIELD: metal pressure forming. SUBSTANCE: method comprises steps of forced introduction a shaped protrusion into a drawing die upon a shaped section drawing; the above mentioned protrusion forming in the blank a recess, having a crescent profile, whose cavity is restricted by walls of the blank. Tool for performing the method includes the drawing die with the shaped protrusion, being in the form of a deforming cylinder, having a cutter; that cylinder with a horizontal axis is arranged under an obtuse angle of a stem, having an adjustable stopper. EFFECT: simplified manufacturing process with use of such tool. 3 cl, 6 dwg

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RU 2 040 352 C1

Authors

Duev Veniamin Nikolaevich

Tolstikov Rehm Mikhajlovich

Aleshin Vladimir Arkad'Evich

Moiseev Gennadij Petrovich

Zel'Dovich Leonid Solomonovich

Dates

1995-07-25—Published

1993-04-19—Filed