Global Patent Index - EP 2797704 B1

EP 2797704 B1 20151014 - METHOD OF COATING A FORGE DIE IN THE IMPLEMENTATION OF PARTS OBTAINED BY TWO SUCCESSIVE OPERATIONS OF FOUNDRY CASTING FOLLOWED BY FORGING

Title (en)

METHOD OF COATING A FORGE DIE IN THE IMPLEMENTATION OF PARTS OBTAINED BY TWO SUCCESSIVE OPERATIONS OF FOUNDRY CASTING FOLLOWED BY FORGING

Title (de)

VERFAHREN ZUM SCHMIEREN EINER SCHMIEDEMATRIZE BEI DER IMPLEMENTIERUNG VON DURCH GIESSEN UND SCHMIEDEN GEWONNENEN TEILEN

Title (fr)

PROCEDE DE POTEYAGE DE MATRICE DE FORGE DANS LA MISE EN OEUVRE DE PIECES OBTENUES PAR DEUX OPERATIONS SUCCESSIVES DE COULAGE DE FONDERIE PUIS DE FORGE

Publication

EP 2797704 B1 (FR)

Application

EP 12812292 A

Priority

  • FR 1162512 A
  • FR 2012052804 W

Abstract (en)

[origin: WO2013098501A1] The method consists of foundry casting a preform according to shapes having desired dimensions, transferring said foundry preform into a tunnel furnace, then an operation of preheating at a temperature ranging from 400 to 500°, transferring the preheated foundry preform into a forge die of substantially smaller dimensions and shape and carrying out the coining operation at a pressure ranging from 600 to 700 MPa, the method being characterised in that before transferring the preheated foundry preform into the forge die, said forge die and the preform positioning means consisting of pins are subjected to a powder spraying operation over the entire inner surface of the forge die likely to receive the preheated foundry preform, and over the pins.

IPC 8 full level

B21J 3/00 (2006.01); B21J 5/00 (2006.01)

CPC (source: EP RU US)

B05B 5/00 (2013.01 - US); B21J 1/06 (2013.01 - US); B21J 3/00 (2013.01 - EP RU US); B21J 5/002 (2013.01 - EP RU US); B22C 9/12 (2013.01 - EP 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)

WO 2013098501 A1 20130704; BR 112014015689 A2 20170613; CN 104080558 A 20141001; CN 104080558 B 20161005; EP 2797704 A1 20141105; EP 2797704 B1 20151014; ES 2557190 T3 20160122; FR 2985205 A1 20130705; FR 2985205 B1 20140110; HR P20160035 T1 20160212; HU E026340 T2 20160530; IN 1357KON2014 A 20151016; MX 2014007943 A 20141121; MX 343436 B 20161104; PL 2797704 T3 20160331; RU 2014125852 A 20160127; RU 2609159 C2 20170130; US 10369619 B2 20190806; US 2014373592 A1 20141225

DOCDB simple family (application)

FR 2012052804 W 20121205; BR 112014015689 A 20121205; CN 201280065534 A 20121205; EP 12812292 A 20121205; ES 12812292 T 20121205; FR 1162512 A 20111229; HR P20160035 T 20160113; HU E12812292 A 20121205; IN 1357KON2014 A 20140626; MX 2014007943 A 20121205; PL 12812292 T 20121205; RU 2014125852 A 20121205; US 201214369371 A 20121205