EP 4175775 A1 20230510 - METHOD FOR MANUFACTURING A BEAM WITH CLOSED SECTION
Title (en)
METHOD FOR MANUFACTURING A BEAM WITH CLOSED SECTION
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES BALKENS MIT GESCHLOSSENEM QUERSCHNITT
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE POUTRE À SECTION FERMÉE
Publication
Application
Priority
- FR 2006991 A 20200702
- EP 2021067597 W 20210627
Abstract (en)
[origin: CA3181671A1] The invention relates to a method for manufacturing a beam (P1, P2) with closed section, the beam being produced by combining a first profile (P10, P20) and a second profile (P11, P21), characterised in that it comprises the following steps: - producing the first profile by means of a first stamping of a first plate (5, 50) between a first punch (1, 10) having a first imprint and a second punch (2, 20) having a second imprint and incorporating a core (3, 30) modifying its second imprint; - holding the first profile (P10, P20) on the first punch and positioning the core (3, 30) above the first profile (P10, P20); - producing the second profile (P11, P21) by means of a second stamping of a second plate (6, 60) against the core (3, 30) between the first punch (2, 20) and the assembly formed by the superposition of the first punch (1, 10), the first profile (P10, P20) and the core.
IPC 8 full level
B21D 53/92 (2006.01); B21D 22/02 (2006.01); B21D 22/21 (2006.01); B21D 35/00 (2006.01); B21D 37/08 (2006.01); B21D 47/01 (2006.01); B21D 47/04 (2006.01); B29C 70/34 (2006.01); B29C 70/46 (2006.01); B29D 99/00 (2010.01); B64C 1/14 (2006.01)
CPC (source: EP US)
B21D 22/022 (2013.01 - EP US); B21D 22/21 (2013.01 - EP US); B21D 35/003 (2013.01 - EP); B21D 37/08 (2013.01 - EP US); B21D 47/01 (2013.01 - EP US); B21D 47/04 (2013.01 - EP US); B21D 53/92 (2013.01 - EP); B29C 70/345 (2013.01 - EP); B29C 70/462 (2013.01 - EP US); B29D 99/0003 (2013.01 - EP); B64C 1/1461 (2013.01 - EP); B64C 1/1461 (2013.01 - US); Y02T 50/40 (2013.01 - EP)
Citation (search report)
See references of WO 2022002805A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3112091 A1 20220107; FR 3112091 B1 20220930; BR 112022025881 A2 20230110; CA 3181671 A1 20220106; EP 4175775 A1 20230510; US 2023249242 A1 20230810; WO 2022002805 A1 20220106
DOCDB simple family (application)
FR 2006991 A 20200702; BR 112022025881 A 20210627; CA 3181671 A 20210627; EP 2021067597 W 20210627; EP 21735972 A 20210627; US 202118003327 A 20210627