Sergey Fedorovich Golovashchenko - Beverly Hills MI, US Andrei Viktorovich Vlassov - Moscow, RU Sergey Sergeyevich Kolesov - Dearborn MI, US Vladimir Grigorievich Kondratenko - Moscow, RU
Assignee:
Ford Motor Company - Dearborn MI
International Classification:
B21D039/02
US Classification:
72322, 72306, 2924358
Abstract:
A method and tool for forming a hem flange. A larger radius bend is initially formed when a pre-hem flange is formed. A sharper radius bend is subsequently formed when the flange is formed. After the flange is formed, conventional hem forming methods and tools may be used to complete formation of a hem that may be used to join inner and outer panels.
Flanging And Hemming Process With Radial Compression Of The Blank Stretched Surface
Sergey Golovashchenko - Beverly Hills MI, US Sergey Kolesov - Dearborn MI, US Andrei Vlassov - Moscow, RU Laurent Chappuis - Grosse Pointe Park MI, US
Assignee:
FORD MOTOR COMPANY - Dearborn MI
International Classification:
B21D039/08
US Classification:
072/057000
Abstract:
A method and tool for forming a hem flange pre-hem and a final hem on a sheet metal panel wherein elastomeric tooling elements are used to apply radial compression during a forming operation. The elastomeric tooling elements are compressed and apply pressure to a side of the sheet metal panel, for example an aluminum panel, that is stretched during a forming process step. A foil layer may be placed between the sheet metal blank and the elastomeric tooling element to reduce friction and further improve forming performance.