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Machine translation
1. (WO1982000013) METHOD OF OBTAINING BUTT-END WALL WITH CONCENTRIC RECESS IN A TUBULAR WORKPIECE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000013    International Application No.:    PCT/SU1980/000106
Publication Date: 07.01.1982 International Filing Date: 26.06.1980
IPC:
B21D 22/14 (2006.01), B21D 22/16 (2006.01), B21D 41/04 (2006.01), B21K 1/02 (2006.01), B21K 21/14 (2006.01)
Applicants: KRAMATORSKY INDUSTRIALNY INSTITUT.
KAPOROVICH, Vladimir, Georgievich; (For US Only).
SEREDA, Viktor, Grigorevich; (For US Only).
CHEMERIS, Valentina, Petrovna; (For US Only).
KAPOROVICH, Vladimir, Vladimirovich; (For US Only).
MAKARYCHEV, Viktor, Appolinarovich; (For US Only).
PIROGOV, Varlen, Konstantinovich; (For US Only).
GNUTOV, Anatoly, Nikolaevich; (For US Only).
SIDOROV, Yury, Petrovich; (For US Only).
TSOGLIN, Aron, Naumovich; (For US Only).
GOLDBERG, Boris, Samuilovich; (For US Only)
Inventors: KAPOROVICH, Vladimir, Georgievich; .
SEREDA, Viktor, Grigorevich; .
CHEMERIS, Valentina, Petrovna; .
KAPOROVICH, Vladimir, Vladimirovich; .
MAKARYCHEV, Viktor, Appolinarovich; .
PIROGOV, Varlen, Konstantinovich; .
GNUTOV, Anatoly, Nikolaevich; .
SIDOROV, Yury, Petrovich; .
TSOGLIN, Aron, Naumovich; .
GOLDBERG, Boris, Samuilovich;
Priority Data:
Title (EN) METHOD OF OBTAINING BUTT-END WALL WITH CONCENTRIC RECESS IN A TUBULAR WORKPIECE
(FR) PROCEDE D'OBTENTION D'UNE PAROI EN BOUT AVEC UN EVIDEMENT CONCENTRIQUE DANS UNE PIECE A USINER TUBULAIRE
Abstract: front page image
(EN)The side wall of the workpiece is deformed in the direction for closing its edges. A butt-end wall with a flat central area is preliminarily formed on the thus obtained vault. The flat area is then depressed with a pressing tool inside the workpiece to form a recess, final forming of the butt-end wall being effected simultaneously by means of its outside rolling. As a result, the metal of the workpiece is forced to shift towards the bent zone of its wall, independently of the distance of that zone from the side wall, thus allowing butt-end walls and recesses of various forms to obtained in a wide range of dimensions. The end of the workpiece is preliminarily heated up to the forging temperature.
(FR)La paroi laterale de la piece a usiner est deformee dans le sens de fermeture de ses bords. Une paroi d'extremite avec une zone centrale plate est formee au prealable sur la voute ainsi formee. La zone plate est ensuite enfoncee avec un outil de compression vers l'interieur de la piece a usiner pour former un evidement, le formage final de la paroi d'extremite s'effectuant simultanement par son laminage exterieur. Il en resulte que le metal de la piece a usiner est force de se deplacer vers la zone courbe de sa paroi, independamment de la distance de cette zone a la paroi laterale, permettant ainsi d'obtenir des parois et des evidements en bout de formes diverses dans une grande gamme de dimensions. L'extremite de la piece a usiner est chauffee au prealable jusqu'a atteindre la temperature de forgeage.
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)