Global Patent Index - EP 1318881 A2

EP 1318881 A2 2003-06-18 - METHOD AND APPARATUS FOR THE MANUFACTURING OF STRUCTURAL MEMBERS

Title (en)

METHOD AND APPARATUS FOR THE MANUFACTURING OF STRUCTURAL MEMBERS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON STRUKTURTEILE

Title (fr)

PROCEDE ET DISPOSITIF DE FABRICATION D'ELEMENTS STRUCTURAUX

Publication

EP 1318881 A2 (EN)

Application

EP 01968898 A

Priority

  • US 0128897 W
  • US 23378200 P
  • US 84994301 A
  • US 87689201 A

Abstract (en)

[origin: WO0224371A2] An efficient and effective process for manufacturing of hardened aluminum components is achieved by coordinating the material preparation steps with the forming steps. The resulting product is a hardened aluminum component with desirable strength characteristics. The process includes initial heating of sheet material (330, 332) in order to prepare it for further processing. The sheet material (330, 332) is then quenched to promote appropriate material conditioning. A product forming sub-process is then undertaken in a relatively short period of time following the quenching. The product forming is done while the material is in a relatively ductile condition, thus easing forming operations, and avoiding product spring-back problems. Lastly, the component is naturally aged, to provide the final hardening operations. The resulting product has very desirable strength characteristics, due to the combined forming and hardening process.

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

B21D 26/02; B21D 53/04

IPC 8 full level (invention and additional information)

B21D 22/00 (2006.01); B21D 26/02 (2011.01); B21D 47/01 (2006.01); B21D 53/04 (2006.01); B21D 53/88 (2006.01); B23K 20/04 (2006.01); B23K 20/18 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/047 (2006.01)

CPC (invention and additional information)

B21D 26/021 (2013.01); B21D 22/00 (2013.01); B21D 26/031 (2013.01); B21D 26/059 (2013.01); B21D 53/045 (2013.01); B23K 20/04 (2013.01); B23K 20/18 (2013.01); C22F 1/04 (2013.01); C22F 1/047 (2013.01)

Citation (search report)

See references of WO 0224371A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0224371 A2 20020328; WO 0224371 A3 20030410; CA 2422784 A1 20020328; EP 1318881 A2 20030618; JP 2004508937 A 20040325

INPADOC legal status


2005-08-17 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050208

2004-11-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040927

2003-07-16 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: TOWER AUTOMOTIVE TECHNOLOGY PRODUCTS, INC.

2003-06-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030402

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR