EP 0510759 B1 19950621 - A method of producing a thin-walled pipe bend.
Title (en)
A method of producing a thin-walled pipe bend.
Title (de)
Verfahren zur Herstellung von dünnwandigen Rohrkrümmern.
Title (fr)
Procédé de fabrication de coudes de tuyaux à parois minces.
Publication
Application
Priority
SE 9101275 A 19910426
Abstract (en)
[origin: EP0510759A1] A method of producing, from sheet metal, a thin-walled pipe bend comprises the steps of producing halves for the pipe bend, the halves being formed into one another' s mirror images in the plane of curvature of the pipe bend. Thereafter, two such halves are joined together, preferably welded, for the formation of a pipe bend. In order to reduce material consumption and rationalize production, an annular gutter (2) is formed in a sheet metal blank (1), the gutter being given a profile which corresponds to the profile of one half. On the formation, a central hole (7) is made in the blank (1) inside the gutter (2). Thereafter, the gutter (2) is separated from the blank (1) and divided into a number of halves which are joined together two-by-two. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 37/28 (2006.01)
CPC (source: EP)
B21C 37/286 (2013.01)
Designated contracting state (EPC)
DE DK ES FR GB IT SE
DOCDB simple family (publication)
EP 0510759 A1 19921028; EP 0510759 B1 19950621; DE 69203030 D1 19950727; DE 69203030 T2 19951102; DK 0510759 T3 19951113; ES 2073856 T3 19950816; SE 9101275 D0 19910426
DOCDB simple family (application)
EP 92201075 A 19920415; DE 69203030 T 19920415; DK 92201075 T 19920415; ES 92201075 T 19920415; SE 9101275 A 19910426