EP 2987566 B1 20191204 - Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr
Title (en)
Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr
Title (de)
Vorrichtung und Verfahren zum Kalibrieren von Grat aufweisenden Schnittflächen an Stanz- oder Feinschneidteilen
Title (fr)
Appareil et méthode pour calibrer des surfaces de coupe avec bavure des pièces d'emboutissage ou des découpage de précision
Publication
Application
Priority
EP 14002887 A 20140820
Abstract (en)
[origin: US2016052039A1] A device and a method for shaping sheared edges on stamped or fine-blanked parts having a burr include at least one cutting stage and at least one forming stage. The forming stage includes a shaping punch which has a shaping region for smoothing the sheared edge of the outer or inner contour of the workpiece to the net shape and an embossing shoulder for mashing the burr of the outer or inner contour. The shaping punch is configured so that the shaping region initially bends the burr on the outer or inner contour away from the sheared edge, then seizes the sheared edge for widening, wherein the embossing shoulder of the shaping punch mashes the burr on the outer or inner contour when the widening on the workpiece has ended and flattens the embossing bead, created during mashing, during separating of the shaping punch from the workpiece.
IPC 8 full level
B21D 19/00 (2006.01); B21D 28/16 (2006.01)
CPC (source: CN EP US)
B21D 19/005 (2013.01 - CN EP US); B21D 28/16 (2013.01 - EP US); B21D 28/26 (2013.01 - US)
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 2987566 A1 20160224; EP 2987566 B1 20191204; CN 105382068 A 20160309; CN 105382068 B 20191108; ES 2775248 T3 20200724; JP 2016043416 A 20160404; JP 6516625 B2 20190522; KR 102193597 B1 20201222; KR 20160022773 A 20160302; US 2016052039 A1 20160225; US 9707613 B2 20170718
DOCDB simple family (application)
EP 14002887 A 20140820; CN 201510514328 A 20150820; ES 14002887 T 20140820; JP 2015160470 A 20150817; KR 20150115361 A 20150817; US 201514819975 A 20150806