Global Patent Index - EP 0931605 B1

EP 0931605 B1 2001-12-19 - Method for producing an elongated hollow body

Title (en)

Method for producing an elongated hollow body

Title (de)

Verfahren zur Herstellung eines länglichen Hohlkörpers

Title (fr)

Méthode de production d'un corps creux allongé

Publication

EP 0931605 B1 (DE)

Application

EP 98118631 A

Priority

DE 19802685 A

Abstract (en)

[origin: EP0931605A2] The naturally hard aluminum or hardenable aluminum alloy manganese and the hardenable aluminum alloy can be aluminum magnesium silicium 1. At least two plates of different wall thickness are joined together and the resultant plate is shaped to form a hollow body. Finally, the body longitudinal edges are seamed together. The hollow body by hydraulic inner high pressure shaping is then brought to its final configuration.

IPC 1-7 (main, further and additional classification)

B21D 53/88; B62D 65/00

IPC 8 full level (invention and additional information)

B21D 51/16 (2006.01); B21C 37/06 (2006.01); B21D 26/02 (2011.01); B21D 26/057 (2011.01); B21D 53/88 (2006.01); B62D 65/00 (2006.01)

CPC (invention and additional information)

B21D 26/057 (2013.01); B21C 37/06 (2013.01); B21C 37/065 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT PT SE

DOCDB simple family

EP 0931605 A2 19990728; EP 0931605 A3 20000503; EP 0931605 B1 20011219; BR 9804252 A 19991207; CZ 295791 B6 20051116; CZ 322298 A3 19991013; DE 19802685 A1 19990729; ES 2166584 T3 20020416; PT 931605 E 20020628