EP 2074237 B1 20180221 - PROCESS FOR MANUFACTURING HOT-FORGED PARTS MADE OF A MAGNESIUM ALLOY
Title (en)
PROCESS FOR MANUFACTURING HOT-FORGED PARTS MADE OF A MAGNESIUM ALLOY
Title (de)
VERFAHREN ZUR HERSTELLUNG VON HEISS GESCHMIEDETEN TEILEN AUS EINER MAGNESIUMLEGIERUNG
Title (fr)
PROCEDE DE FABRICATION DE PIECES FORGEES A CHAUD EN ALLIAGE DE MAGNESIUM
Publication
Application
Priority
- FR 2007001245 W 20070719
- FR 0653053 A 20060720
Abstract (en)
[origin: WO2008009825A2] The present invention relates to a process for manufacturing a part made of a magnesium alloy, comprising a step of forging a block of said alloy followed by a heat treatment, characterized in that the alloy is a foundry alloy based on 85% magnesium and containing, by weight: 0.2 to 1.3% zinc, 2 to 4.5% neodymium, 0.2 to 7.0% rare-earth metal with an atomic weight from 62 to 71 and 0.2 to 1.0% zirconium and in that the open-die/closed-die forging is carried out at a temperature above 400°C. In particular, the temperature is between 420 and 430°C and the forging step comprises plastic deformation carried out at a slow rate. The process allows parts to be obtained such as casing elements for aeronautical machines, operating at temperatures of around 200°C and having good ageing resistance.
IPC 8 full level
C22F 1/06 (2006.01); C22C 23/06 (2006.01)
CPC (source: EP US)
C22C 23/06 (2013.01 - EP US); C22F 1/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2008009825 A2 20080124; WO 2008009825 A3 20090129; BR PI0714451 A2 20130402; BR PI0714451 B1 20170404; CA 2659041 A1 20080124; CA 2659041 C 20140121; CN 101517117 A 20090826; CN 101517117 B 20150701; EP 2074237 A2 20090701; EP 2074237 B1 20180221; FR 2904005 A1 20080125; FR 2904005 B1 20100604; US 2010012234 A1 20100121; US 8142578 B2 20120327
DOCDB simple family (application)
FR 2007001245 W 20070719; BR PI0714451 A 20070719; CA 2659041 A 20070719; CN 200780027450 A 20070719; EP 07823307 A 20070719; FR 0653053 A 20060720; US 37454807 A 20070719