METHOD OF MANUFACTURE OF ENVELOPES Russian patent published in 1994 - IPC

Abstract RU 2025171 C1

FIELD: metalworking. SUBSTANCE: first stage of deforming is effected by free bulging of medium by pressure. Then final forming is performed and part profile is fixed by making use of central rigid punch and pressure of the working medium. Subjected to action is peripheral portion of the blank which is beyond the punch in the direction opposite to initial forming with shaping of circular fin. EFFECT: enhanced reliability. 4 dwg

Similar patents RU2025171C1

Title	Year	Author	Number
BENDING DIE	0	Galazyuk Vitalij Apollonovich Zavirokhin Ivan Georgievich Teslya Vasilij Vasilevich	SU1683839A1
DEVICE FOR AND METHOD OF SHEET FORMING	0	Gabriel De Sme	SU1727521A3
METHOD FOR MANUFACTURING SCREEN OF COLOR CATHODE- RAY TUBE	1990	Galazjuk Vitalij Apollonovich[Ua] Nikolaev Evgenij Ivanovich[Ru] Khomljak Ljubomir Vladimirovich[Ua] Khotimskij Stanislav Danilovich[Ru] Shimanovich Aleksandr Sergeevich[Ua]	RU2056660C1
PROCESS OF MANUFACTURE OF REFLECTOR OF ANTENNA	1991	Galazjuk Vitalij Apollonovich Nikolaev Evgenij Ivanovich Khomljak Ljubomir Vladimirovich Khotimskij Stanislav Danilovich	RU2034378C1
CELLULAR FILLER FOR FLAT AND CURVE MULTILAYER PANELS	1992	Semenchenko Jurij Borisovich[Ua] Zavirokhin Ivan Georgievich[Ua] Zavirokhin Nikolaj Ivanovich[Ua]	RU2069625C1
COMPOSITE METAL SHIELD OF REFLECTING SURFACE OF MIRROR ANTENNA AND METHOD OF MANUFACTURING IT	0	Galazyuk Vitalij Apollonovich Khomlyak Lyubomir Vladimirovich Dulipa Yaroslav Vionorovich Bobkov Boris Yakovlevich Nikolaev Evgenij Ivanovich	SU1773642A1
SHEET FORMING METHOD AND DEVICE FOR EFFECTING THE SAME	0	Gabriel De Sme	SU1829978A3
METHOD OF MANUFACTURE OF ELASTIC METALL SEALING GASKETS	2017	Astredinov Vitalij Mitrofanovich Sinyukov Timofej Ulyanovich Sinyukov Dmitrij Igorevich	RU2641202C1
METHOD FOR PRODUCING THIN-WALLED SPHERICAL SHELLS	2022	Ber Vladimir Ivanovich Sidelnikov Sergej Borisovich Belokonova Irina Nikolaevna Voroshilov Denis Sergeevich Konstantinov Igor Lazarevich Durnopyanov Aleksandr Vasilevich Dobrovenko Mikhail Petrovich Voroshilova Marina Vladimirovna	RU2791478C1
METHOD FOR PRODUCING ARTICLES OF SHEET BLANKS IN SUPER-PLASTICITY STATE	2005	Apatov Konstantin Jur'Evich Tsepin Mikhail Anatol'Evich Afrikantov Andrej Aleksandrovich Apatov Jurij Leonidovich	RU2306996C2

RU 2 025 171 C1

Authors

Galazjuk Vitalij Apollonovich

Zavirokhin Ivan Georgievich

Dates

1994-12-30—Published

1990-11-02—Filed