EP 3697549 B1 20230705 - METHOD FOR PRODUCING A TOOTHED HUB
Title (en)
METHOD FOR PRODUCING A TOOTHED HUB
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER VERZAHNTEN NABE
Title (fr)
PROCÉDÉ DE FABRICATION D'UN MOYEU DENTÉ
Publication
Application
Priority
- DE 102017124338 A 20171018
- EP 2017082690 W 20171213
Abstract (en)
[origin: WO2019076473A1] The invention relates to a method for producing a hub with an inner toothing from a sheet blank made of thin sheet metal, the method comprising the following steps: - deep drawing a cup-shaped indentation with a round base surface in the sheet blank in a number of drawing steps, in such a way that the thickness of the sheet blank increases in the region of the base surface; - producing a collar in the region of the base surface by means of collar drawing; - stabilising the collar by a mould resting flush against the outer surface thereof; - introducing a die having a negative of the inner toothing into the collar; and - subsequently performing bulk sheet-metal forming by axially upset forging the collar until the material in the region of the collar lies in the die. The invention also relates to a method for producing a hub having an outer toothing.
IPC 8 full level
B21K 1/30 (2006.01); B21D 19/08 (2006.01); B21D 22/22 (2006.01); B21D 35/00 (2006.01); B21D 53/26 (2006.01); B21D 53/28 (2006.01); B21K 1/42 (2006.01)
CPC (source: EP)
B21D 53/261 (2013.01); B21D 53/28 (2013.01); B21K 1/30 (2013.01); B21K 1/42 (2013.01); B21D 22/22 (2013.01)
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)
WO 2019076473 A1 20190425; EP 3697549 A1 20200826; EP 3697549 B1 20230705; ES 2956760 T3 20231227; PL 3697549 T3 20231211; PT 3697549 T 20230927; SI 3697549 T1 20230929
DOCDB simple family (application)
EP 2017082690 W 20171213; EP 17818107 A 20171213; ES 17818107 T 20171213; PL 17818107 T 20171213; PT 17818107 T 20171213; SI 201731377 T 20171213