EP 2583768 B1 20161214 - Method of press hardening and cutting of a sheet material
Title (en)
Method of press hardening and cutting of a sheet material
Title (de)
Verfahren zum Presshärten und Schneiden eines Blechmaterials
Title (fr)
Procédé pour le durcissement et découpe d'une tôle
Publication
Application
Priority
DE 102011116714 A 20111022
Abstract (en)
[origin: EP2583768A1] The tool comprises: two tool parts (200, 300) that are moved, relative to each other, in a working direction and between which a heated sheet metal material is formed by applying a compressive force acting in the working direction; and a separation device, with which a separation operation is executed at the metal material present between the tool parts. The separation device comprises a separation vane that is movable transverse to the working direction, with which the separation operation is executable after forming the metal material in a steep section extending to the working direction. The tool comprises: two tool parts (200, 300) that are moved, relative to each other, in a working direction and between which a heated sheet metal material is formed by applying a compressive force acting in the working direction; and a separation device, with which a separation operation is executed at the sheet metal material present between the tool parts. The separation device comprises a separation vane that is movable transverse to the working direction, with which the separation operation is executable after forming the sheet metal material in a steep section extending to the working direction. One of the tool parts is formed with a tool segment (220) that is supported resiliently on a base plate of the tool part and with a cooling device (230, 330) for the active cooling of a tool effective area. The movable separation vane: is passively actuated; is shifted in a direction transverse to the working direction; is formed for cutting or punching the sheet metal material; and comprises a given direction of movement that vertically extends to the steep section. The tool further comprises: a driver for the passive operation of the separation vane; a spring device (240) for resilient support of the tool segment at the base plate, where the spring device acts as a gas pressure spring and a nitrogen spring; and a drive element for the active operation of the separation vane. A cross-section line for the separation operation executed by the movable separation vane partially passes in a non-active cooled steep section. An independent claim is included for a method for press hardening a sheet metal material.
IPC 8 full level
B21D 24/16 (2006.01); B21D 22/02 (2006.01); B21D 28/32 (2006.01); B21D 37/16 (2006.01)
CPC (source: EP)
B21D 22/022 (2013.01); B21D 24/16 (2013.01); B21D 28/325 (2013.01); B21D 37/16 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2583768 A1 20130424; EP 2583768 B1 20161214; CN 103056212 A 20130424; CN 103056212 B 20161221; DE 102011116714 A1 20130425; DE 102011116714 B4 20221222
DOCDB simple family (application)
EP 12006819 A 20121001; CN 201210398641 A 20121019; DE 102011116714 A 20111022