EP 1976651 B1 20110831 - ACTIVE RECONFIGURABLE STRETCH FORMING
Title (en)
ACTIVE RECONFIGURABLE STRETCH FORMING
Title (de)
AKTIVES, REKONFIGURIERBARES STRECKFORMEN
Title (fr)
FORMAGE ACTIF RECONFIGURABLE PAR ETIRAGE
Publication
Application
Priority
- AU 2007000059 W 20070123
- AU 2006900369 A 20060125
Abstract (en)
[origin: WO2007085041A1] This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.
IPC 8 full level
B21D 22/26 (2006.01); B21D 24/00 (2006.01); B21D 24/10 (2006.01); B21D 24/14 (2006.01); B21D 25/00 (2006.01); B21D 25/02 (2006.01); B21D 37/02 (2006.01)
CPC (source: EP GB US)
B21D 11/085 (2013.01 - US); B21D 22/26 (2013.01 - GB); B21D 24/00 (2013.01 - GB); B21D 24/10 (2013.01 - GB); B21D 24/14 (2013.01 - GB); B21D 25/00 (2013.01 - EP US); B21D 25/02 (2013.01 - EP US); B21D 31/04 (2013.01 - EP US); B21D 37/02 (2013.01 - EP US); B21D 37/04 (2013.01 - US); B21D 37/10 (2013.01 - US); B21D 53/00 (2013.01 - US); B21D 53/883 (2013.01 - EP US)
Designated contracting state (EPC)
ES FR
DOCDB simple family (publication)
WO 2007085041 A1 20070802; AU 2007209756 A1 20070802; AU 2007209756 B2 20110526; CN 101389420 A 20090318; CN 102554008 A 20120711; CN 102554008 B 20150225; DE 112007000212 T5 20090205; DE 112007000212 T9 20090604; EP 1976651 A1 20081008; EP 1976651 A4 20100512; EP 1976651 B1 20110831; ES 2373749 T3 20120208; GB 0812950 D0 20080820; GB 2447204 A 20080903; GB 2447204 B 20110309; HK 1173106 A1 20130510; US 2010043511 A1 20100225; US 2015068261 A1 20150312; ZA 200806368 B 20091230
DOCDB simple family (application)
AU 2007000059 W 20070123; AU 2007209756 A 20070123; CN 200780006668 A 20070123; CN 201210032383 A 20070123; DE 112007000212 T 20070123; EP 07700085 A 20070123; ES 07700085 T 20070123; GB 0812950 A 20070123; HK 13100238 A 20130108; US 16231707 A 20070123; US 201414484949 A 20140912; ZA 200806368 A 20080722