EP 3656480 B1 20240717 - U-O SHAPING OF A COMPONENT CURVED AROUND THREE SPATIAL AXES
Title (en)
U-O SHAPING OF A COMPONENT CURVED AROUND THREE SPATIAL AXES
Title (de)
U-O-FORMEN EINES UM DREI RAUMACHSEN GEKRÜMMTEN BAUTEILS
Title (fr)
FORMAGE U-O D'UN COMPOSANT COURBÉ SUIVANT TROIS AXES SPATIAUX
Publication
Application
Priority
DE 102018123456 A 20180924
Abstract (en)
[origin: CN110935759A] The present disclosure relates to a method for producing a shaped sheet metal component from a billet (1) by means of U-O forming, wherein firstly a preform is created by the U-forming and then a final shaping is performed by the O forming to give a final form. The process is characterized by including steps of: providing a planar billet; U-forming the billet to give a U-preform; near-net-shape cutting of the U-preform; placing the U-preform into an intermediate forming tool (15), bending-up a plurality of protruding edges (8) of the U-preform, especially ends (9) of the U-preform; placing a filling body (1) in the U-preform and bending edges (8) to overlap with the filling body (13), and pulling the filling body out of the U-preform after said bending step, so as to generate elastic and plastic deformation of the bent ends; and O-forming an obtained intermediate form (16).
IPC 8 full level
B21D 5/01 (2006.01); B21D 5/10 (2006.01); B21D 22/02 (2006.01); B21D 22/06 (2006.01)
CPC (source: CN EP US)
B21C 37/0815 (2013.01 - EP); B21D 5/01 (2013.01 - US); B21D 5/015 (2013.01 - EP); B21D 5/10 (2013.01 - CN EP); B21D 7/06 (2013.01 - CN US); B21D 22/025 (2013.01 - EP); B21D 22/06 (2013.01 - EP); B21D 53/88 (2013.01 - CN)
Citation (examination)
EP 2720813 B1 20141001 - THYSSENKRUPP STEEL EUROPE AG [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102018123456 A1 20200326; CN 110935759 A 20200331; CN 110935759 B 20230307; EP 3656480 A2 20200527; EP 3656480 A3 20200624; EP 3656480 B1 20240717; EP 4252931 A2 20231004; EP 4252931 A3 20240313; US 11577294 B2 20230214; US 2020114408 A1 20200416
DOCDB simple family (application)
DE 102018123456 A 20180924; CN 201910889579 A 20190920; EP 19198564 A 20190920; EP 23193022 A 20190920; US 201916577287 A 20190920