EP 2419547 A1 20120222 - METHOD FOR PRODUCING A SHAPED PART
Title (en)
METHOD FOR PRODUCING A SHAPED PART
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES FORMTEILS
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE PIÈCE MOULÉE
Publication
Application
Priority
- AT 2010000120 W 20100419
- EP 09450081 A 20090417
- EP 10718421 A 20100419
Abstract (en)
[origin: EP2248926A1] The method for producing a shaped part (1) from an aluminum sheet (2) comprising aluminum alloy of the 5000 series, comprises introducing the aluminum sheet in a forming tool, cold-forming the aluminum sheet, heating the cold-formed aluminum sheet once in some regions, and then subjecting the heated aluminum sheet to a further formation step yet before reaching a temperature which has the aluminum sheet during its cold-forming. The aluminum sheet is formed into a partial form of the shaped part by cold forming and into the final form of the shaped part by the further formation. The method for producing a shaped part (1) from an aluminum sheet (2) comprising aluminum alloy of the 5000 series, comprises introducing the aluminum sheet in a forming tool, cold-forming the aluminum sheet, heating the cold-formed aluminum sheet once in some regions, and then subjecting the heated aluminum sheet to a further formation step yet before reaching a temperature which has the aluminum sheet during its cold-forming. The aluminum sheet is formed into a partial form of the shaped part by cold forming and into the final form of the shaped part by the further formation. The cold-formed aluminum sheet is heated at 150-350[deg] C below a recrystallization temperature of the aluminum sheet. Before cold-forming, the aluminum sheet is provided with a temperature -resistant lubricant, which is removed from the aluminum sheet in a step after the further formation step. The aluminum sheet is introduced into the forming tool during the further formation step, and is partially formed by deep-drawing. For heating the cold-formed aluminum sheet, the aluminum sheet is partially introduced into a counter mold of a heating tool following the form of the aluminum sheet. The cold-formed aluminum sheet is partially cut before and/or after the further formation step.
IPC 8 full level
C22F 1/047 (2006.01); B21D 22/20 (2006.01)
CPC (source: EP US)
B21D 22/20 (2013.01 - EP US); B21D 22/208 (2013.01 - EP US); B21D 35/005 (2013.01 - EP); C22F 1/047 (2013.01 - EP US)
Citation (search report)
See references of WO 2010118454A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2248926 A1 20101110; CN 102395699 A 20120328; CN 102395699 B 20171212; EP 2419547 A1 20120222; EP 2419547 B1 20210602; ES 2887329 T3 20211222; US 10022769 B2 20180717; US 2012090371 A1 20120419; WO 2010118454 A1 20101021
DOCDB simple family (application)
EP 09450081 A 20090417; AT 2010000120 W 20100419; CN 201080017128 A 20100419; EP 10718421 A 20100419; ES 10718421 T 20100419; US 201013264855 A 20100419