EP 3896188 A1 20211020 - A METHOD OF MANUFACTURING OF ENERGY-ABSORBING ELEMENTS MADE OF AGE-HARDENABLE ALUMINUM ALLOY SHEETS THAT FACILITATE FURTHER JOINING
Title (en)
A METHOD OF MANUFACTURING OF ENERGY-ABSORBING ELEMENTS MADE OF AGE-HARDENABLE ALUMINUM ALLOY SHEETS THAT FACILITATE FURTHER JOINING
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ENERGIEABSORBIERENDEN ELEMENTEN AUS ALTERSHÄRTBAREN ALUMINIUMLEGIERUNGSBLECHEN, DIE EINE WEITERE VERBINDUNG ERMÖGLICHEN
Title (fr)
PROCÉDÉ DE FABRICATION D'ÉLÉMENTS D'ABSORPTION D'ÉNERGIE CONSTITUÉS DE FEUILLES EN ALLIAGE D'ALUMINIUM DURCISSABLES PAR VIEILLISSEMENT QUI FACILITENT L'ASSEMBLAGE ULTÉRIEUR
Publication
Application
Priority
EP 20169730 A 20200415
Abstract (en)
The purpose of the invention was to develop a new method of manufacturing of energy-absorbing elements made of aluminum alloy sheets that facilitate further joining. A method of manufacturing of energy-absorbing elements made of aluminum alloy sheets that facilitates further joining is disclosed. The method comprises steps of: cutting out the blank from sheet metal, heating an Al-alloy blank to its solution heat treatment temperature (T<sub>SHT</sub>) and holding it until solution heat treatment (SHT) is complete, immediate transferring of hot blank to a forming station, preforming of hot blank, i.e. simultaneous stamping and cooling the blank, in order to produce a solutionized preform having shape intermediate between the blank and a final product, finishing stamping of the cold preform to obtain the final shape of the drawpiece, trimming, in order to remove the excess of the material and subjecting components to artificial ageing in order to increase the strength of the material.
IPC 8 full level
C22F 1/04 (2006.01); C22F 1/00 (2006.01); C21D 1/673 (2006.01)
CPC (source: EP)
B21D 22/022 (2013.01); B21D 24/005 (2013.01); B21D 35/005 (2013.01); C22F 1/002 (2013.01); C22F 1/04 (2013.01); C21D 1/673 (2013.01)
Citation (applicant)
- WO 2008059242 A2 20080522 - UNIV BIRMINGHAM [GB], et al
- US 10029624 B2 20180724 - DIERSMANN HOLGER [DE], et al
- US 2012186706 A1 20120726 - KRAJEWSKI PAUL E [US]
- EP 3467138 A1 20190410 - AUTOMATION PRESS AND TOOLING A P & T AB [SE]
- US 8613820 B2 20131224 - SMEYERS AXEL ALEXANDER MARIA [BE], et al
- EP 3117019 A2 20170118 - IMP INNOVATIONS LTD [GB], et al
Citation (search report)
- [XI] US 2019070652 A1 20190307 - PFRANG JAN ANDREAS [DE]
- [A] CN 107740014 A 20180227 - UNIV CENTRAL SOUTH
- [I] JAE-YEOL JEON ET AL: "Two-Step Die Motion for Die Quenching of AA2024 Aluminum Alloy Billet on Servo Press", MATERIALS TRANSACTIONS, THE JAPANESE INSTITUTE OF METALS AND MATERIALS, JP, vol. 55, no. 5, 11 April 2014 (2014-04-11), pages 818 - 826, XP002745093, ISSN: 1345-9678, DOI: 10.2320/MATERTRANS.L-M2014806
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 20169730 A 20200415