EP 0344386 A1 19891206 - Press tool for plates with high deformability grade.
Title (en)
Press tool for plates with high deformability grade.
Title (de)
Blechpresswerkzeug mit hohem Verformungsgrad.
Title (fr)
Outillage d'emboutissage de tÔles à taux de portée élevé.
Publication
Application
Priority
EP 88401354 A 19880603
Abstract (en)
Press tool for plates, in particular for metallic blanks of large dimensions, of the type comprising a punch (2), a die (1, 6) and upper (4) and lower (3) blank holders, the die (6) of which is obtained by moulding from a compact elastomeric material to form a so-called "semi-rigid" die. Application: in particular to the pressing of automotive body parts. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 37/20 (2006.01)
CPC (source: EP)
B21D 22/10 (2013.01); B21D 22/22 (2013.01); B21D 37/20 (2013.01)
Citation (search report)
- [X] EP 0170374 A2 19860205 - GEN MOTORS CORP [US]
- [X] DE 1577142 B1 19710225 - WMF WUERTTEMBERG METALLWAREN
- [Y] DE 3151382 A1 19821021 - TOVARNE STROJARSKEJ TECH [CS]
- [A] US 2842801 A 19580715 - WALKEY GEORGE J, et al
- [A] US 4509358 A 19850409 - KROWL WILLIAM G [US]
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 88401354 A 19880603